lol, well all male peacock hap tanks are great. On the law lol, well only trouble with fronts and haps/peacocks is that often they nip the trailers and fins of fronts. Of course for a while the haps/peacocks will out grow the fronts, when the front get larger they still nip at them. The trailers on a large male front are amazing! So take that into thought, or of course fonts are pretty laid back and spoke easy. peacocks and haps can stress them out. I have kept them together until fronts were 6-8 inchs though with little problems.