Complete H20 change-scrape algae week before?
Changing all the water in a 180 for the first time in 3 yrs.
There's minimal coral in it but about 300# of live rock.
Lots of algae. Can't even see into the tank.
Should I scrape the glass and rock right before the water change or a couple days before so the DOC's are in the water?
Thanks!
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