I have a 30 gal mbuna tank (yes, I know it's on the small side but that is not something I can change right now). Currently I have 9 fish. Right now I have one fish that is bigger than all the rest and just dominates all the rest. They have good hiding places with some Anubias and Java Ferns I planted and several smaller rock structures. I am considering a couple options. I am thinking of either adding one more bigger one to give the big dominant one a more formidable distraction, or adding a couple more smaller ones the same size as the rest to increase the overcrowding/more distractions concept. Perhaps neither is preferable? Any advice? (besides to get a bigger tank) I know we want overcrowding but how much is too much in a long 36" 30 gal?