Minimum Tank Size. Remember that if you buy online, you must be prepared to add shipping costs to the price. Still, they should also be offered daily meals of small live and frozen fares such as daphnia, artemia, bloodworms, tubifex, grindal worm and Moina. Now, let’s take a look at how to care for the Clown Killifish. Killifish profile and care information such as tank size, tank mates, life span, diet, foods, breeding, behavior, tank setup and temperament. Diet. Approximate purchase size : 1.5 - 2.5cm All Pond Solutions will always endeavour to supply as close to the approximate size range as possible. These fish do best in still water conditions, and too much movement will stress them. In the home aquarium, Clown Killifish will accept dried foods of a suitable size such as high-quality flakes and granules. When housing just a trio of these … Tank size Thanks to their size, Clown Killifish are popular with hobbyists who have nano and micro tanks. The only issue with such tanks is that the filter current is often very strong, which doesn’t suit the still water conditions that are preferred by this species. Order Clown Killifish for your tank today! Since Killifish are rather small, these fish can be kept in smaller desktop variety aquariums. Almost any warm water climate in the world has a species of SIZE: Most Killifish are small, ranging in size from 2 to 3.5" (9 cm). Before bringing your Killifish home, be sure to inquire what water conditions your Killifish were raised in for best end results.