06 February 2016


Well, boiling half my prefilter sponge apparently did not kill off all the bacteria, or there's enough on other surfaces it didn't matter much. I checked water params this morning: ammonia and nitrite nil. There are still small tufts of BBA on the sponge I zapped, but it's turned kind of green. I've read about BBA turning red or orange as it dies off, but not green....

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