BRS GFO

[lastlight]

I'm a little less technical about how I go about it. I started off following BRS' instructions and the HC stuff is expensive. I just decided my maintenance amount would be 1 cup per month regardless of levels. Actually I don't even test them. When I notice the algae on the front glass comes back strong in 2 days I usually change it out. So far once a month is roughly when that happens.