I have a thirty gal with a 4 inch palmas bichir, one three inch electric blue cichlid, two 1 & 1/2 inch marmalade cichlids, 2 two inch beaufort botia (chameleon loaches), a four inch brown knife, three inch albino rainbow shark and a one inch common pleco. I am planning on moving out after X-mas and upgrading to a ninty gal, do you think I should move any of these critters into a twenty gallon with three cories and four swordtails? or should i just buy another thirty gallon for the cichlids? I have some driftwood in there for the ph (and my tiny pleco) and lots of plants and two caves, as well as a pvc tube for the knife. I have heard conflicting info on knives and cichlids in the same tank, so I am thinking of moving the cichlids or giving them to my friend who has a 60 gal convict tank, but they are still tiny- 
arrgg I am frustrated! what do ya'll think?
arrgg I am frustrated! what do ya'll think?