I have lots of experience in freshwater and have kept many Africans so I do understand aggressive fish. I have read allot and it appears the Percula complex is the least aggressive on rule and the Maroons the most. I was curious how the other complexes or species compared in the vast middle ground or if something is more aggressive than a maroon let me know. I love maroons but not sure I want to put then in biocube 29. Well I do but not sure that is a good move and was wondering outside of percs what my other options might be. I only like onyx percs ( sigh expensive taste in a way) so I was wondering how the other clowns were by comparison to those two.