As far as water changes are concerned, in the past I've gone about 2-3 months before without doing them. About 6 months ago I slacked on my additives and had the alk drop too low and lost a handful of nice corals.
Lately I've been trying a new method of water changes. I used to try and change 30 gallons twice a month. Now I change about 5 gallons 4-5 times per week.
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