I have kept one Kuhli because all its siblings died off and it did okay temporarily until I got more. But it was nocturnal and rarely came out in the public arena. As soon as it got more company all was back to normal and they were all very active again. Now they all are active and happy day and night. I have 3 in one tank and 5 in the other and they do love that arrangement. (one tank is a 12 gallon and the other is a 25 gallon) The 12 gallon is shared with a betta and the 25 is shared with 5 medium sized adult cories (2 Sterba's and 3 Greens)

Rose