Yes.. that is what i have in my tank right now with a pictus cat.I bought them all at the same age 1 1/2 in and put plenty plants drift wood for hiding places jd is now pushing 6 and firemouth is 4 con about the same.the funny thing is the pictus is the most agressive out of all of them,very territorial of his log.i plan on keeping them there for life, i will keep an eye on the jd way down the road some not alot get big if he does than i will move him out.