I have been setting up a 55 US gallon mbuna tank. I get lava rock wholesale so i have made rock caves in each corner and a little thing in the middle. I have 2 penquine bio-wheel 330's and a 200 watt heater. My tap water comes from a well so it is totaly untouched (no chlorine) it has a PH of about 8.1-8.2 and im getting a couple live Anubias and java fern, and java moss if i can find anywhere that sells it in the US. I have a neighbor that breeds african cichlids and he can sell them to me cheap. So now i need to know how many i can get, i would like to stay in the ratio 1M/3F, and i am going to get different kinds and im getting them at about the size of 1", so fairly young, and i need to know about how many i can get.