55 gallon tank for all future monsters.... i don't thinks so. Just the pacu will grow to arond 3 feet. and the rest of the fish will grow to aggresive one footers. you got a poor choice of picks in ur small 55 gallon. If you were to all keep ur fish heathily, you should of gotten at least a 300 galllon tank!!!! I would keep the Green terror and the fire mouths or the Jack Dempsey and the fire mouths for ur 55 gallon. Good luck.
1. Red Devils must be go
2. Convicts are suitable for your 55gal
3. Pacu......ugh why the stores still sell them?....must be go
4. Firemouths are suitable for your 55gal
5. Oscar must be go
6. Green Terror must be go
7. Jack Dempsey are suitable for your 55gal
8. Rainbow cichlid are suitable for your 55gal
9. Jaguar cichlid must be go
IMO you should keep JD, they can be stunning center piece fish.
the ones in red are definite no go..but you can have...
firemouths, convicts, and jack dempsey
jack dempsey and green terror
convicts, firemouths, and rainbow cichlid
oscar
green terror
jack dempsey
these are pretty much the choices you can have im sure there are some other ones with these fish and also they are aggressive fish regardless so it is usually hit or miss