Daphnia are small freshwater crustaceans that occur in ponds, lakes, temporary pools, and other freshwater environments where they form an important part of aquatic food webs. Their characteristic swimming movement makes them natural prey for many small fish and developing juveniles.

The cultured nematodes offered in this Variety Pack occupy very different ecological niches and are maintained under different culture conditions. What connects them as aquarium foods is their small size, movement, and usefulness for fish capable of consuming them.

This variety is precisely why maintaining more than one live food can be useful. Fish do not encounter one standardized type of food in natural environments, and different live foods allow aquarists to offer different sizes and feeding experiences.

Keeping Your Live Foods

The two live foods in this Variety Pack should be maintained separately after arrival. Live Daphnia are aquatic and should be kept in freshwater, while Microworms, Whiteworms, Vinegar Eels, Banana Worms, and Walter Worms each have their own culture requirements. Do not combine the two selections into one container for storage simply because they arrived together.

Live Daphnia: Keep Daphnia in clean, conditioned freshwater with good oxygen exchange and avoid sudden changes in temperature or water quality. A dedicated aquarium or culture container makes it easier to maintain them between feedings and can allow the population to reproduce. Daphnia need an appropriate food source if they are being maintained rather than fed to your fish shortly after arrival.

Microworms: Keep Microworms in their culture medium and harvest small amounts from the culture as needed. They should not be transferred into freshwater simply for storage. With proper maintenance, the culture can continue producing worms for repeated feedings.

Banana Worms: Maintain Banana Worms in their culture medium and harvest them as needed. Like Microworms, they are intended to be kept as an active culture rather than stored in aquarium water.

Walter Worms: Keep Walter Worms in their culture medium and maintain the culture for continued production. Harvest only the amount needed for each feeding so the remaining population can continue reproducing.

Vinegar Eels: Vinegar Eels should remain in their vinegar-based culture until harvested for feeding. They should be separated from the culture liquid before being offered to fish; do not pour the vinegar culture directly into the aquarium.

Whiteworms: Whiteworms require a different setup from the smaller nematode cultures. Maintain them in an appropriate culture medium under cooler conditions, keeping the culture moist without allowing it to become waterlogged. Harvest worms as needed rather than attempting to store the culture in freshwater.

If you plan to use live foods regularly, maintaining the cultures instead of treating them as single-use portions can turn this Variety Pack into an ongoing source of live food. This is particularly useful for breeders, since different cultures can provide feeding options as fry grow and become capable of taking larger foods.

Feeding Your Live Food Cultures

Keeping live foods productive means feeding the cultures themselves. Daphnia, Microworms, Whiteworms, Vinegar Eels, Banana Worms, and Walter Worms do not all eat the same things, so each should be maintained and fed according to its own culture requirements.

Live Daphnia: Daphnia are filter feeders that consume suspended microscopic foods from the water. Green water and suspended microalgae are excellent foods, and appropriately prepared alternatives such as small amounts of yeast can also be used. Feed lightly enough that the culture can clear the food between feedings. Consistently cloudy or foul-smelling water is a sign that too much food or organic material may be accumulating.

Microworms: Microworm cultures are commonly maintained on a moist cereal-based medium such as oatmeal. A small amount of yeast can be used to support the microorganisms that help sustain the culture. The medium should remain moist but should not become soupy or flooded.

Banana Worms: Banana Worms can be maintained similarly to Microworms using a moist cereal-based culture medium. Oatmeal and similar media can support an active culture, with small amounts of yeast commonly used to help keep the culture productive.

Walter Worms: Walter Worms are also maintained on a moist culture medium similar to other small nematode cultures. Oatmeal or another suitable cereal-based medium can be used, with small amounts of yeast helping support continued production. Avoid overfeeding or allowing excessive food to accumulate as the culture ages.

Vinegar Eels: Vinegar Eels live in an acidic liquid culture and feed primarily on microorganisms associated with the culture. They are commonly maintained in a mixture of vinegar and water with pieces of apple or another appropriate culture starter to support the bacterial population on which the nematodes feed. The culture should remain separate from your aquarium, and the eels should be harvested from the liquid before feeding them to fish.

Whiteworms: Whiteworms can be fed a variety of nutrient-rich foods in small amounts. Appropriate foods can include fish food, bread or cereal-based foods, and other suitable culture foods. Feed only what the colony can consume without allowing uneaten food to spoil. Whiteworm cultures are particularly sensitive to excessive food and deteriorating culture conditions.

With any live-food culture, more food does not automatically mean more production. Overfeeding can encourage mold, foul the culture, reduce oxygen, and eventually cause a culture to crash. Start with small amounts, observe how quickly the food is being consumed, and adjust feeding based on the size and productivity of the culture.

Feeding and Diet

Live foods should be matched to the mouth size, developmental stage, and feeding behavior of the fish being fed. A food that works well for one species of fry may be too large, or unnecessarily small, for another.

Start with conservative amounts and observe whether the fish are actively consuming the food. Live food is still food, and adding more than the aquarium can use can contribute to unnecessary organic waste.

For breeders, maintaining more than one live food can be particularly useful as fry grow. Very small foods may be appropriate early in development, while Daphnia and larger live foods can become useful as the fish develop and their mouths become larger.

Live foods can complement quality prepared and frozen foods and do not need to become the exclusive diet.

What Fish Eat These Live Foods?

The Freshwater Live Food Variety Pack – Fry and Micro Foods can be useful for a wide range of freshwater fish, but the best choice depends on the fish's mouth size, age, and feeding behavior. Newly free-swimming fry may require extremely small foods, while juveniles and adult nano fish may readily pursue larger Daphnia or other live foods.

Fish Fry: Many species of fry can benefit from Microworms, Banana Worms, Walter Worms, or Vinegar Eels once they are large enough to consume them. Live Daphnia can become especially useful as fry grow and are able to handle larger moving foods. Because fry size varies dramatically between species, no single live food should be considered appropriate for every newly hatched fish.

Guppies and Other Livebearers: Guppy, Endler, Platy, Molly, and other livebearer fry can benefit from appropriately sized live foods. Microworms and similar small nematodes can be useful early foods, while Daphnia become increasingly useful as the fry grow. Adults may also eagerly pursue Live Daphnia and larger live foods.

Medaka and Ricefish: Medaka fry and juveniles can benefit from appropriately sized micro foods as they develop. Adults readily pursue small moving foods such as Daphnia, making this pack useful across different stages of a breeding group.

Bettas: Betta fry are extremely small and require appropriately sized foods as they develop. Vinegar Eels and small cultured nematodes can become useful during early development, while Daphnia and larger foods can be introduced as the young fish grow. Adult Bettas may also eagerly pursue Live Daphnia and Whiteworms.

Killifish: Many Killifish are enthusiastic live-food feeders. Appropriately sized micro foods can be useful for fry, while juveniles and adults often readily pursue Daphnia and other live foods.

Rasboras: Small Rasboras such as Chili, Strawberry, Phoenix, and other nano species naturally consume tiny aquatic organisms. Appropriately sized Daphnia and micro live foods can provide feeding enrichment for adults, while the smallest foods may also be useful when raising fry.

Small Tetras: Ember Tetras and other small tetras readily pursue appropriately sized moving foods. Live Daphnia can provide excellent feeding enrichment for adults, while smaller cultured foods may have applications when raising fry.

Celestial Pearl Danios and Other Small Danios: Small Danios are active visual feeders that readily investigate moving live foods. Daphnia can be particularly attractive to juveniles and adults, while appropriately sized micro foods can be useful when raising fry.

Small Rainbowfish: Rainbowfish fry and juveniles can benefit from appropriately sized live foods as they develop. Adults of smaller species may also eagerly pursue Daphnia in the water column.

Dwarf Gouramis and Other Small Gouramis: Gouramis commonly investigate small live foods, and appropriately sized Daphnia can provide an active feeding experience. Their fry can be extremely small, however, and may require foods smaller than Daphnia during their earliest stages.

Dwarf Cichlids: Apistogramma, Rams, and other dwarf cichlids often respond enthusiastically to live foods. Daphnia and Whiteworms can be useful for appropriately sized juveniles and adults, while smaller foods may have applications when raising fry.

Match the Food to the Fish

The important question isn't simply “Will my fish eat live food?” It is “Which live food is the right size for my fish right now?”

Vinegar Eels, Microworms, Banana Worms, and Walter Worms give breeders options for very small mouths. Daphnia provide actively swimming aquatic food for fish large enough to capture them. Whiteworms are considerably larger and are better suited to appropriately sized juveniles and adults.

This is why maintaining more than one type of live food can be so useful for breeders: as the fish grow, their live-food options can grow with them.

One of the biggest advantages of this Variety Pack is that many of the organisms can be maintained as renewable live-food cultures rather than treated as single-use foods.

Microworms, Banana Worms, Walter Worms, and Vinegar Eels can be maintained and harvested from established cultures when properly cared for. Daphnia can also reproduce under suitable freshwater culture conditions.

Whiteworms can be maintained as a culture as well, but their environmental and culture requirements differ from those of the smaller nematodes.

Maintaining multiple cultures can be especially useful for breeders because it provides access to different food sizes as fry develop.

What comes in the Freshwater Live Food Variety Pack – Fry and Micro Foods?

Every pack includes Live Daphnia plus your choice of Microworms, Whiteworms, Vinegar Eels, Banana Worms, or Walter Worms. All of the live foods offered in this pack are Bred by Aquatic Arts.

Why does every pack include Daphnia?

Daphnia provide an actively swimming freshwater live food that is useful for many fry, juveniles, nano fish, and appropriately sized adults. The second selection allows you to pair that swimming food with another live food that differs in size or feeding behavior.

Which option is best for newly hatched fry?

There is no universal first food for all fish fry. Fry differ dramatically in mouth size and feeding behavior when they become free-swimming.

Vinegar Eels and the smaller cultured nematodes can be useful for many very small fry, while other fry may be capable of taking Microworms or appropriately sized Daphnia relatively early. Research the requirements of the species you are breeding rather than assuming every fry can consume the same food.

Which option should I choose if I am new to breeding fish?

Microworms are a popular starting point because they are widely used for many types of fry and can be maintained as a renewable culture. Paired with Daphnia, they provide two distinctly different live-food options.

The best choice still depends on the species you intend to breed.

Why would I choose Vinegar Eels?

Vinegar Eels are extremely small and remain suspended in the water longer than foods that quickly settle. This can make them particularly useful for very small fry that feed within the water column.

Do I pour the Vinegar Eel culture directly into my aquarium?

No. Vinegar Eels should be harvested from their culture before feeding. The vinegar-based culture medium should not be poured directly into the aquarium.

What is the difference between Microworms, Banana Worms, and Walter Worms?

All three are small cultured nematodes used as live foods for fry and small fish. They differ somewhat in size and culture characteristics, but all can provide a renewable source of very small moving food.

For many aquarists, the choice comes down to the size of the fish being fed, culture preference, and which live-food cultures they want to maintain.

Why are Whiteworms included if this is a Fry and Micro Foods pack?

Whiteworms serve a different purpose. They are considerably larger than the micro-sized nematodes and are not intended as a first food for tiny fry.

They are included because breeders often feed more than one developmental stage. Pairing Daphnia with Whiteworms can provide live-food options for larger juveniles, adults, or breeding stock while smaller fish utilize the Daphnia.

Can I feed Whiteworms to newly hatched fry?

Generally, Whiteworms will be too large for tiny newly hatched fry. They are better suited to appropriately sized juveniles and adult fish.

Can Daphnia be too large for fry?

Yes. "Fry" covers an enormous range of sizes. Some fry can consume small Daphnia relatively early, while very tiny fry may require much smaller foods first.

Always match food size to the fish rather than relying solely on the age of the fry.

How should I store Live Daphnia?

Daphnia should be maintained in suitable freshwater conditions rather than refrigerated like a short-term worm portion. Provide clean, conditioned freshwater, adequate oxygen exchange, and appropriate food if they will be maintained rather than fed promptly.

Avoid sudden temperature or water-quality changes.

Can I culture the Daphnia instead of feeding them all immediately?

Yes. Daphnia can reproduce when maintained under suitable freshwater culture conditions. Maintaining a separate culture can provide an ongoing source of live food.

Culture productivity depends on water quality, food availability, stocking density, temperature, and other environmental conditions.

How should I store Microworms?

Maintain Microworms in their culture rather than transferring them to aquarium water for storage. Keep the culture according to its provided care instructions and harvest worms as needed for feeding.

How should I store Banana Worms?

Banana Worms should remain in their culture medium and be maintained as an active culture. Harvest only what you need for feeding and maintain the culture according to the included instructions.

How should I store Walter Worms?

Walter Worms should remain in their culture and be maintained under suitable culture conditions. They are intended to provide a renewable source of small live food rather than being stored as an aquatic feeding portion.

How should I store Vinegar Eels?

Vinegar Eels should remain in their established vinegar-based culture until they are harvested for feeding. Do not refrigerate or transfer the entire culture into freshwater for storage.

How should I keep Whiteworms?

Whiteworms should be maintained as a culture under cool conditions in an appropriate culture medium. They should not be stored the same way as Daphnia or vinegar-based cultures.

Because each live food in this Variety Pack has different maintenance requirements, separate the two selections after arrival and follow the care instructions for each.

Do all of these live foods need refrigeration?

No. This is important. Do not treat the entire Variety Pack as though both selections have identical storage requirements.

Daphnia should be maintained in freshwater. Vinegar Eels remain in their vinegar-based culture. Microworms, Banana Worms, and Walter Worms remain in their respective culture media. Whiteworms have their own cooler culture requirements.

Follow the care instructions for the specific second food you selected.

What should I do when my Variety Pack arrives?

Unpack both live foods promptly and inspect them. The Daphnia should be transferred or maintained according to their freshwater care instructions.

Your second live food should remain in or be transferred to the appropriate culture conditions for that organism. Do not combine the two simply because they arrived as one Variety Pack.

How much live food should I feed?

Feed an amount appropriate for the number, size, and developmental stage of the fish. Start conservatively and observe how readily the fish consume the food.

Breeders should pay particular attention to fry bellies, growth, water quality, and uneaten food rather than relying on a fixed feeding quantity for every species.

Can I feed live foods every day?

Live foods can be incorporated into regular feeding programs, but frequency should depend on the species, developmental stage, nutritional requirements, and other foods being offered.

Variety remains important, and no individual live food should automatically be assumed to provide complete nutrition by itself.

Are live foods useful for conditioning breeding fish?

Live foods are commonly incorporated into conditioning programs because they provide dietary variety and often encourage enthusiastic feeding. However, successful breeding also depends on appropriate overall nutrition, water conditions, maturity, social structure, and species-specific husbandry.

Can adult nano fish eat these foods too?

Yes. This pack isn't exclusively for fry. Many small adult fish readily pursue Daphnia and appropriately sized micro live foods.

That makes the pack useful for nano aquariums as well as breeding setups.

Are these live foods Bred by Aquatic Arts?

Yes. The Daphnia, Microworms, Whiteworms, Vinegar Eels, Banana Worms, and Walter Worms offered through this Variety Pack are Bred by Aquatic Arts.

How many Live Daphnia are included?

Each pack includes 100+ Live Daphnia. We use the 100+ count because these are living cultures containing Daphnia at different sizes and stages of development, and we pack them generously rather than trying to provide an exact individual count.

What can I feed Live Daphnia to?

Daphnia can be fed to a wide variety of freshwater fish that are large enough to eat them. Depending on the size of the Daphnia and the fish, this can include fry, juveniles, nano fish, small community fish, livebearers, Bettas, killifish, small tetras and rasboras, and many appropriately sized adult fish.

Why are Daphnia useful for fry?

Daphnia provide moving live food that can encourage natural feeding behavior. As fry grow large enough to eat them, Daphnia can become another step in the progression from extremely small first foods toward larger foods. The important factor is the size of the fry's mouth rather than simply its age.

Are Daphnia a first food for newly hatched fry?

Not necessarily. Some fry are capable of taking small Daphnia relatively early, while others begin life with mouths far too small for them. Vinegar Eels, Microworms, Banana Worms, or Walter Worms may be more appropriate for very small fry depending on the species.

Can I culture the Daphnia instead of feeding them all at once?

Yes. One of the advantages of receiving live Daphnia is the opportunity to establish a culture and harvest from it over time. You can keep some or all of the Daphnia in a separate culture and harvest portions for your fish as the population grows.

Why does this pack include Green Water?

The included 8 oz Green Water Culture gives customers interested in maintaining their Daphnia a useful starting food source. Green water contains suspended microscopic algae and microorganisms that Daphnia can filter from the water.

The 8 oz portion is intended to help you get started rather than serve as an indefinite supply of food for a Daphnia colony. An established culture will need an ongoing source of appropriate food.

Do I pour the Green Water into my aquarium?

The Green Water is primarily included for customers who want to maintain or establish their Daphnia culture. It does not need to be added to your display aquarium simply because it came with the pack.

Should I feed all 100+ Daphnia to my fish?

You certainly can, but you don't have to. If you would like a renewable source of Daphnia, keep a portion in a separate culture and feed only some of them to your fish. You can then harvest additional Daphnia as the culture reproduces.

Can Daphnia live in my aquarium with my fish?

They may survive for some time if conditions are suitable, but fish that recognize Daphnia as food will usually hunt them. If your goal is to maintain a reproducing Daphnia population for future feedings, a separate culture is the better approach.

Why combine Daphnia with another live food?

Different live foods vary considerably in size, movement, and where fish encounter them. Daphnia actively move through the water, while the selectable worm cultures behave differently. Having two foods available lets you feed different fish, different developmental stages, or simply provide more variety.

Which option should I choose for very small fry?

Vinegar Eels are among the smallest options in the pack and remain suspended in the water, making them useful for many very small fry. Microworms, Banana Worms, and Walter Worms are also commonly used for fry. The best choice depends on the species and the size and feeding behavior of its young.

Which combination gives me the greatest difference in food size?

Daphnia + Whiteworms provides one of the largest contrasts in this pack. Whiteworms are considerably larger than the other selectable worm cultures, making this combination particularly useful when feeding different sizes or life stages of fish rather than looking exclusively for tiny fry foods.

Can I maintain the second live food as a culture too?

Yes. The selectable foods are live cultures that can be maintained and propagated with appropriate care. This can be particularly useful for breeders because the pack can help establish more than one renewable source of live food rather than simply providing a few individual feedings.

Can I use this pack even if I'm not breeding fish?

Absolutely. Although fry and breeding are major reasons to maintain live-food cultures, Daphnia and the larger selectable foods can also be useful for nano fish, small community fish, conditioning adults, finicky eaters, and aquarists who enjoy providing their fish with opportunities to hunt live foods.

Do live foods replace prepared fish food?

They don't have to. Live foods can be incorporated into a broader feeding rotation alongside appropriate prepared and frozen foods. They are particularly useful for fry, breeding projects, conditioning, encouraging natural hunting behavior, and fish that are reluctant to accept prepared foods.

How much live food should I feed at one time?

Start with a small amount and watch how your fish respond. The appropriate amount depends on the number and size of the fish and how quickly they consume the food. The goal is active feeding without adding considerably more food than the aquarium's inhabitants can use.

Aquatic Arts guarantees that the live foods in your Freshwater Live Food Variety Pack will arrive alive. Because the pack contains two different live organisms with different care requirements, unpack and inspect both promptly upon delivery.

If either portion arrives with a problem, take clear photos of the affected live food and the shipping label and contact us at info@aquaticarts.com so we can assist with your Live Arrival Guarantee claim.

After inspection, maintain each live food according to its individual care and culture requirements.