I am a fish fanatic. I own a 135 Malawi community, and a newer and still collecting 55 Tanganyikan community. I am very into cichlids, their names both scientific and common but my thing is the rare cichlids. My 135 has very rare fish such as Christmas fulu (extinct in original lake victoria) and a paratilapia bleekeri (starry night cichlid) extinct in madagascar. I know all the ph and gh and kh, and where i live i have to do absolutely nothing to my water except add stress coat. I have tried to see if people make the same type of Tanganyikan community I am going for. I understand the rock dwellers, sand sifters, shell dwellers. I have 10 tanganyikan fish in my 55 and they are all different species. I have a couple xenotilapia (dole bay and melanogynus), a cylindricus, a lelupi, 2 black congo calvus, a 5 bar cichlid, a telmatochromis vitattus, a regani and a marlieri, and 2 fancy plecos. I understand i have mixed the types of fish and I MEAN TO! dont get me wrong i thought a 55 gallon is big enough to make all homes for these interesting fish. I have tried to read about any of this new community action, but all i have read is how people make communities with 3 fish of the same species and have about 20 fish for my size of tank. It sounds like the people who wrote the articles that i read say i cannot mix this fish together, like the same person said malawis are too hard to mix for large communities which is proved wrong by the tank in my living room, it has at least 50 to 60 fish in 135 gallons. Am i doing something wrong, or should i continue on with my beautiful collection.