Wow growbot thats low! Mine stays at 50 - 55 normally. I can get it up to 70 % with a portable unit but Rumples hit it on the head. I started foliar feeding because of some leaf curl and general unhealthy conditions. And I sprayed with lights off and usually I turned off fans so that the stomas would suck up the water. Big mistake! Thanks Rumples, I won't be doing that again.
PS I looked it up and the mold was consistent with phythium mold
