Ok, I have recently gotten back into the hobby and after a brief bout of mts i decided to get some cichlids. I have had 10 small mixed africans in my 55 gallon tank for a while now and they seem happy as clams. Is that too many? Is there enough room for more? When you buy small mixed african cichlids, what type of cichlids does that usually include? Sorry for all the questions but I figured you guys and gals mould know better then myself. And if this helps, I'm going to be looking into making a nice rock formation this week for them to flit in and out of as they grow, any sugestions for stackable stones? Thanks in advance.