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The Redtail Splitfin Goodeid is a less common livebearer that is a fascinating subject for the heavily planted aquarium! These are tank bred here in the United States!
The Redtail Splitfin Goodeid (Xenotoca eiseni) is a very unique livebearer that thrives in the heavily planted community aquarium. This species is a splash of reds, blues, and oranges. Mature males tend to develop a more colorful and higher body. This species is native to Mexico, where its populations have been in significant decline, but it fortunately has been preserved by tank-breeding by many aquarists.
The Redtail Splitfin Goodeid typically occupies the top and middle level of the water column, although it can often be seen swimming and feeding in the bottom level as well. This fish is not afraid to jump, so it must be kept in an aquarium with either a lid/hood/canopy or at least a significantly lowered water level. It will not eat or bother ornamental plants. Males can sometimes be boisterous, so this fish should only be kept with other species that are durable and of comparable size. Larger, peaceful invertebrates can also potentially make good tankmates. This fish will exhibit its best coloration in a heavily planted aquarium with dark substrate. It should also be kept in a group with multiple males and females. The Redtail Splitfin Goodeid is best kept in groups in neutral to hard water. It typically will not thrive in very soft water.
While not a picky eater, the Redtail Splitfin Goodeid will thrive and remain very colorful on a varied diet of omnivorous foods that are rich in spirulina or other nutritious vegetable matter since it naturally feeds on algae as a major part of its diet. High-quality and flake food, pellets, and frozen foods will all be readily accepted.
What We Like About This Fish:
- Distinctive coloration, especially males
- Less common than many other related livebearers
- Hardy and adaptable
- Excellent for inhabiting the top of the aquarium
- Thrives in the planted aquarium
RECOMMENDED TANK PARAMETERS:
- Temperature: 59° - 86° F (15° - 30° C)
- pH: 7.0 - 8.0
- KH: 10 - 20 dKH
- Minimum Tank Size: 30 gallons for a medium to large group
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- Diet: Omnivorous. Will easily accept high quality dry and frozen foods and requires plenty of vegetable matter.
- Social Behavior: Peaceful, schooling/shoaling.
- Origin: Tank-bred, but indigenous to Mexico
- Average Adult Size: 2.8 - 3.1 inches (7 - 8 cm)
- Average Purchase Size: 1.5 inch (3.8 cm)