They don't have as big of a draw on Ca and Alk as corals do but the reality is they'll live longer if you keep your big 3 params in check. If you maintain levels with waterchanges then that's probably good enough but keep dosing open as an option if that has trouble keeping up over time..
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-- Tony
My next hobby will be flooding my basement while repeatedly banging my head against a brick wall and tearing up $100 bills. Whee!
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