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Im adding sparklers to my twenty gal. I wanted to do four of them but I am hesitant to add them all at once since it will greatly raise the bioload. If i were to add two now and two later would there be any issues with the newer ones trying to establish territories since the other two already have theirs? I have never kept gouramis so i dont know much about how territorial they are. Want some advice. The tank has plenty of hiding room.
