I've been thinking about growing macro algea, but I haven't really looked to hard for it TBH. Is it better to grow in a refugium rather than in the tank itself? Do in-tank refugium work? I've seen hang on tank and as well as in-tank refugiums, would you recomend one over the other?
The last question was in regards to flow. Should I keep the circulation pumps aimed upwards for air exchange or is there a better way of doing it?
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