I should have mentioned this in my earlier post, but as the other posters have staed, I would stick to only one species per tank. The harem idea should still be alright, but you never know. If you were to do harems, place multiple flowerpots/caves all over so they do have choices, and I would only keep probs 2 males with however many femles.
"You think you have tomorrow, but when tomorrow comes it's not tomorrow; it's now- and that's all you have" - Marc Johnson
Ehei-Pimpfen 276 yo!