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get a bio cube or a nano cube, (i would get the nano personally)
yes, i personally keep saltwater for the coral because it is very beautiful, but fresh water is defiantly cheaper.
read my hubs.
i would disagree, saltwater is easier to tend to then freshwater, but of you want a saltwater tank you'd have to empty your pockets to have one.
that's a good answer. ide start small first if you want one and then go big. remember, having a reef is very expensive and hard to start big for your first time, if you want to start one refer to my hubs and they will teach you everything.