Planted Tank Obsessed
Join Date: Dec 2014
Location: Colorado Springs
Ok, this is a stupid question but if the fish aren't being overfed, and you're not around to see it, is the green water hurting anything? I know it's unsightly, but it's not actually a problem unless you get a huge die off (by trying to kill it for example), is it? Can it get so thick as to actually be a problem for fish?
I'd say let the green water stay green, make sure the filter media is getting rinsed out a bit more regularly since the algae will get filtered out some, and let it be.
My only other question would be if you changed food products prior to the green water appearance, or some other thing like light period.