Emerald Fire Crayfish - Care Guide

The Emerald Fire Crayfish has an extremely impressive albeit unusual color combination: emerald green and fire orange. The colors contrast extremely well and make this crayfish look almost unreal. The claws are large and daunting, lined with fire orange and tipped with red. The rest of the crayfish is a beautiful combination of green and orange. Rarely, the crayfish will exhibit a dark, near-black green instead of emerald green.




The Emerald Fire Crayfish is a proprietary breed that results from hybridizing two different species from the Cherax genus.  It is a completely new variant and to our knowledge has not been sold by anyone else in the United States.  Cherax is the one of the largest and most widespread genus of fully aquatic crayfish in the Southern Hemisphere.  Members of the Cherax classification are most often found in the lakes, rivers, and streams of Australia and New Guinea.  Many species of Cherax are known by the common name “yabbies” in Australia.
This is one of the largest freshwater crayfish in the world at adult size, but it is less aggressive than Procambarus alleni (Electric Blue Crayfish).   These crayfish can live in almost any freshwater aquarium and are among the toughest freshwater tank inhabitants available to the hobby.  These are very active creatures that love to explore and do not spend all of their time under rocks. They are well known for keeping tanks clean and free of waste, and are especially useful in large aquariums of 30 gallons or more.  Due to their maximum potential size, they should not be kept in aquariums any smaller than 20 gallons.  These crayfish can live up to 5 or 6 years old with the proper care.
If you are planning to keep this crayfish with other crayfish or other large types of fish and invertebrates, is important to keep them in a tank with plenty of hiding places. Crayfish are vulnerable when they are shedding their exoskeleton, so landscaping the tank with live plants, driftwood, rocks, and/or caves is vital to their survival.  Also, it is normal for a crayfish to eat his/her skeleton after molting.






6 to 8 inches in length



Recommended Tank Parameters 

  • pH level range: 7.3 - 8.2
  • Temperature range: 71° - 85° F
  • Water type: kH 3 - 10; gH 4 - 10; TDS 100 - 300
  • Notes from the owner: 
    - Crayfish are the hardiest freshwater specimens we have to offer, and thus tend to handle shipping and the acclimation process quite well.
    - Though crayfish are NOT friendly, they can often live with fast-moving fish (such as rasboras, danios, etc.). They are fairly slow and only a sick fish would be able to be caught by the crayfish. We have kept them with guppies and dwarf shrimp, and have never seen a death ourselves, but we cannot guarantee that dwarf shrimp will be safe if kept with a large crayfish.  Some crayfish have also been known to eat snails, though this is does not always happen.



Crayfish will typically eat whatever they can catch, but since they are slow-moving, they are rarely able to harm most types of fish or shrimp. They prefer foods like invertebrate pellets or blanched vegetables (such as zucchini, carrots, and spinach), but will also eat fish food and algae wafers.  
Warning! Avoid any food product, medication, or plant fertilizer that contains Copper of any form. Copper is toxic to invertebrates. Many commercial fish foods, medications, and plant fertilizers contain copper or more commonly copper sulfate. Always look at the ingredient list for any product going into the aquarium to ensure they are copper free.

What to Expect from Us 

We generally ship young crayfish that are around 3 inches or more in length.  They will already have vibrant colors, but their colors should intensify even more as the crayfish matures and grows larger.  Also, their claws will grow much larger in proportion to their bodies once the crayfish are fully grown adults.  
We ship the crayfish in plastic cups with wet paper towels. These cups are injected with medical grade oxygen before they are placed in a box and shipped out. This method of packaging the crayfish has proven to be MUCH more successful than our previous method (shipping them in a bag full of water). This minimal-water method is how most aquatic companies ship their crayfish, so it is something we learned from companies much larger and older than us. 
All Aquatic Arts brand plants and animals come with a 100% live arrival guarantee, plus free email support directly from the owners!  All that we require is that you send us a clear, digital picture of the unopened bag of DOAs, and we will replace them free of charge.



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