Fisherman830, I have 2 False Percula's right now and 2 Clarkii's on the way. I've heard and read that the Clarkii's can get mean, of course after I ordered them, but I have seen other posts where Clarkii's and False Percs have been fine together. How long have you had yours together? The Perc's have been in there for 2 months now, so I should be fine adding the Clarkii's afterwards, right? They will be in a 72 gallon. Would you recommend just putting 1 Clarkii in the tank, or would adding both be fine, giving me a pair of Clarkii's and a pair of False Percs, neither necessarily a mated pair, yet at least, although the Percs seem pretty close with eachother now. Thanks.