I have a yellow lab I am moving to a 55gal and A firemouth I have to move because of some agresion with cons. I was thinking of trying them together in the 55 gallon the lab is 3in and the firemouth 1.5 in. what do you think can this possibly work? I know the hardness of water is different but the lab has been in medium soft water sense I have had him and done pretty well. Maybe some other fish later as well.
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