it really just depends on how responsable you are, i gotta end this debait. lol. if your responsible with yuor tank, check water, clean, do all the neccesary things, than ur not having trouble with ur 2.5 g so it easy for you. If your irresponibly and cant handle your 55 g, then its harder for you. there, so if ur responsible, ur be able to handle this tank as good as you want (to an extent)...!!!!!