30g is REALLY pushing it for a lake malawi or lake victoria set up. if you really want to do it, then put in a few yellow labs, and perhaps some demasonis. you could also throw in a few cories too if you want. in my 55g malawi cichlid tank, i got 4 yellow labs, 4 johanni, 4 kenyii, 4 red zebras, and 2 corys. great lookin tank. remember that they need a high ph of around 8.0 or so. so put crushed coral as your substrate and make sure that you use lace rock to provide numerous caves and hiding places.
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