Gardneri killifish do well in community aquariums although it is important to keep the fish tank covered at all times, as these fish are prone to jumping. There should be very minimal lighting, and accordingly so, only live plants that can tolerate low light conditions such as crypts (Cryptocoryne sp.) and java moss (Vesicularia dubyana) should be considered. Ideally, the aquarium should be long and have reduced water movement to mimic their natural habitat.
Dimorphism: Typically the males will exhibit vivid colors and will be larger than the females.
Fecundity: This type of killifish prefers planted aquariums and can lay their eggs on java moss or spawning mops. It is recommended to remove the adults after spawning has been observed or thought to have occurred. Fry will gladly accept live baby brine shrimp.
Water Chemistry: 73-79° F, KH 5-8, pH 6.0-7.5.
Gold gardneri killifish prefer water that is on the acidic side, so consider supplementing their water with peat moss or driftwood, which can naturally decrease pH.
Aquarium Diet: Adult killifish prefer live and frozen foods such as brine shrimp and blood worms, although some will accept dry foods such as flakes and pellets as well. Some killifish can be picky eaters. If this is the case with yours, feed live food and gradually introduce it to dry food as well.
Compatibility: Male killifish can be aggressive towards one another. If multiple pairs are being housed, make sure the aquarium is sufficient in size and areas for the killifish to retreat to if they feel threatened. Some other tankmates can include tetra species such as pristella tetras (Pristella maxillaris) or rosy tetras (Hyphessobrycon rosaceus), Corydoras species, and danio species such as the pearl danio (Danio albolineatus).