He is pretty much too big now.you need a 6ft tank and 2-3 females

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Can anyone tell me if it is a she/he and what species he is
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what a beauty !!! really nice .. what did you pay for this big one if you don't mind me asking.. you still can add a couple of 3 inch ones for companionship.. but your going to need a bigger tank eventually.. the frontosa grows very slowly.. so if this one is approximately 8 inches i would quess he is 3 or 4 years old... they can grow to 16 inches when full grown.. looks male.. but the only way to tell for sure is venting.. which means take a pic of the fish underneath..