In fact, they are known as some of the friendliest species out of all species out there. These small fish are very peaceful, do not require much maintenance and are very good breeders as well. In terms of the number of killifish in your tank, they do prefer to live in groups; this means that you should keep more killifish together in your tank, possibly 4, 5 or even more. They are regarded as more tropical fish, but they do live in different conditions in the wild, so it is not obligatory that they have strict conditions. Firstly, there should be no larger and predatory fish in the tank that could feed on the killifish; secondly, the tank conditions and water parameters should suit the killifish. chocolate australe. The problem is that they like cooler temps. It is an aggressive fish at times. This fish is a typical egg hanger (surface-spawner) laying its eggs on the roots of floating plants in the wild but accepts a floating nylon wool mop in the aquarium. If we consider the size of the killifish, then it is probably best to say that a 5-gallon tank is the absolute minimum tank requirement for the killifish. It grows up to 1 1/2 inches. Like all "killies" (egg-laying tooth carps), it is not a community tank fish. To keep them happy, you should take proper care of them, and pair them with the right tank mates for them. In fact, they are known as quite shy fish, especially at the beginning or when you introduce them to new fish. Required fields are marked *. As the pond dries up, the parents die but the eggs buried an inch or so (two or three centimeters) deep under the mud survive and hatch within a few hours of the rains coming back in the wet season months or sometimes even a year later. It can be found all the way from South Carolina, Florida, Georgia to Louisiana. When the least killifish grow up – this process can take to up to a few months – they can grow to up to 1.5 inches. No, just kidding. It is known to survive in very different conditions in these areas. Least killifish is a freshwater fish that is also often found in brackish waters. What Is a Killifish? I just set up a little 2.5 gallon tank with a pair of killifish. You add the proper water as instructed and within hours you have hatched fry. If soft tap water is not available, rainwater may do the trick, unless it is rainwater from within a city or industrial area, then try to get reverse osmosis water from a local tropical fish store for best results. Adding soft water will then hatch the fry. It is known to survive in very different conditions in these areas. For the top-spawners, a 1/2-inch layer of previously boiled peat moss on the bottom of the breeding tank makes the water acid and also provides a dark bottom, preferred by these fish. Best answer: Answer by david_in_milwaukee I have had some limited success breeding killifish. So they are quite often found in North American freshwaters and brackish waters of Alabama and neighboring counties. But the ideal ph should be about neutral to slightly basic. The most often place to find it is Alabama, especially in the blackwater habitats of South Pine Hills and Coastal Lowlands. Breeding is quite easy, but some people have reported that they have been unable to develop their own killifish; it might be because of bad tank conditions. does not intend to provide any kind of veterinary suggestion. These eggs arrive in moist peat moss and have been already properly aged. The only time they can turn aggressive is when you have small, lone shrimp in your tank and they can turn on him in numbers, but this does not occur very often. They tend to be generally shy fish, so they might be hiding when you introduce them to the tank mates a lot; they will develop a good relationship with them over time, though, and they are perfectly fine with tank mates. The male is easily recognized by his three-pointed tail. Though beautiful for a brief and splendid period, they quickly begin to fade, wither and die. All Rights Reserved. In terms of feeding patterns, you should aim to feed your killifish once or twice a day, but do not overfeed them. The various species vary in coloration and finnage, and though they are closely related to live-bearing tooth carps, they are egg-laying fish; however, egg-laying in a way unlike any other fish on the planet. This will prevent diseases and stop health deterioration, but also it will keep them happier, which will enable you to see them in their best shape. You can also feed the flakes, although it is better to keep feeding them meaty foods. In terms of their numbers they are not rare as such, but in terms of their occurrence in home aquariums, they can be considered a rarity. Question by northstarangelfish: What temperature should killifish eggs be hatched at? The females cannot carry a large amount of fry due to their small size. It has reportedly worked for some people, while some people have never had results of doing this. In the aquarium, it needs 1 1/2 layers of peat, a temperature of 70 F, and soft water. For feeding the fry, they prefer to eat newly hatched brine shrimp and micro worms. They are livebearers, which means that the females carry eggs in their bodies. But they are not limited to smaller tank sizes like 5 and 10 gallons. However, to keep the fish healthy, you should aim to provide the killifish with the right water environment and water conditions. The sizes vary, but it is generally the case that females tend to be larger than the males; the females reach up to about 1.5 inches in size, while the males grow to only about an inch. Least Killifish Habitat (source – CC BY-SA 4.0). This fish lays its eggs on the bottom among peat fiber. The Spruce Pets uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. The eggs should be collected from there and put in a sealed plastic box in just-moist peat for five to seven weeks. Least killifish, or the Heterandria Formosa, is a livebearer fish that is one of the best fish to have in your tank for many reasons.