All of Koubek's tanks are in a air conditioned room kept at 20°C. He uses 20 and 30 gallon tanks (60 × 32 × 38 cm and 90 × 32 × 38 cm) that are well planted with Java moss and fern. The room is well lit but there is no overhead lighting over the tanks. The tanks are covered with a cover glass. Regular water changes of 30% are performed. The water is soft and slightly acidic.
Only live food is used. The fish are given regular feeding of live daphnia and other pond collected arthropods and larvae. Feeding is supplemented with grindal and microworms fed on crushed peanuts.
Many killies occur sympatric with other killies. Likewies, Koubek keeps different species together being careful only to mix fish that cannot hybridize. Naturally members of the Cameronense complex will not be kept together. A typical mix is that of Aphyosemion punctatum and Aphyosemion rectogoense or A. occelatum and A. jorgenscheeli. Under such conditions competitive conditions the fish are more productive and active.
Click on the image for a larger view.
 Aphyosemion cameronense "K98 yellow fins", Photo by Rudolf Koubek |
 Aphyosemion cameronense "K99 NW Congo", Photo by Rudolf Koubek |
 Aphyosemion herzogi "K98 99 red", Photo by Rudolf Koubek |
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 Aphyosemion kunzi "TT K99", Photo by Rudolf Koubek |
 Diapteron seegersi, Photo by Dirk Bellstedt |
 Diapteron abacinum, Photo by Mach Fukada |