Killiefish

Of all the fish I have kept, the killifish are the most interesting for me.

A typical fish room set-up for killies is with a lot of small tanks and a few larger tanks for grow-out. This is ideal if you are space limited.

They don’t breed in such huge numbers that getting rid of your surplus fish is hard. Also in most areas of the country, there are aquarists that specialize in these fish so you generally will find a market for the ones you will raise. They are hardy enough to be shipped successfully by the average hobbyist. Some of them can even be shipped as eggs but I have yet to try that.

Some of them rival the beauty of the coral reef fish but are much easier to keep. I find some of the more subdued colored killies are also fascinating but that’s a matter of taste I suppose.

Generally, as a group, killifish fanciers are more careful about maintaining the purity of the species of fish they keep, which is why you will often see them listed with not only the scientific name but the collection location and date. The danger of mixing collections is the possibility that some collections will later turn out to be a different species so you will end up with a hybrid.

If the collection suffix ever gets lost, then the fish should carry the suffix “AQ” meaning aquarium strain with unknown parentage. If the fish is listed without collection information then “AQ” is assumed.

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