Asylumdown's 275 Tank build

[asylumdown]

Originally Posted by Masonjames

The alk drop, and lack of being able to raise it may be a symptom of running a sewage treatment plant. Aka, dirty as sh** sandbed. If that sand bed is full of garbage and the system is trying to process it the bacteria may be using alk as a carbon source trying to keep up.

I suppose that's possible, but I do vacuum my sand at least once a month, sometimes more. I started doing it in the spring because I kept getting ugly patches of cyano in the same places on the sand. My mind was blown by the amount of crud that came out of it the first couple of times, but it seems to be pretty clean now. I still have problems with cyano, just never on the sand now.