Quote Originally Posted by Kenya View Post
Hah yeah i got caught. I had a diatom problem due to tap water but now it has stopped by using different water conditioner and longer mixing time with the salt.

My setup is around 4 months old. Maybe just another part in the tank cycle?
at 4 months would be hard to say if it's the tap water (with conditioner) or just part of the cycle or a combination of both. ro/di would help narrow the problem.

i won't debate tap vs. ro/di. just too many variables in a closed system.

i will say,imho, limit the variables.