I'm a newbie with a 48 gallon tank and have 46 lbs. of LR from a friends tank and was told to do a 50% water change after running it for 2weeks which I did. My parameters are good and am still getting some browning on the rocks, & crushed coral, my experienced friends say this will only happen until the tank is more established. I have a couple of snails and about 10 hermit crabs and I'm about to put 1 maybe 2 fish in soon. So it sounds like 10 to 20 gallon water change is a drop in the bucket with a 90 gallon tank. I'm going to do a 5 gallon wc weekly from now on.
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Hey! I never "LEFT" the hobby, just doing fresh water now. Which is still listed as part of Canreef if I'm not mistaken.
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