Trust me, I've done water changes and the next day it's right back up to 30ppm and the next day around 40ppm. It comes out the tap at 10-20ppm and my RCS haven't been doing too well.
Is there any kind of small bag I could put it in?
Last edited by Darkblade48; 11-06-2013 at 11:14 PM..
Reason: Please use the edit function for back to back posts to keep threads cleaner