I was wondering if anyone has some insight on what could be wrong with my frag tank. Some of the ZOAS are opening and will stay open all day and then there are others that are completely shut or halfway open etc. All of my parameters are in check. My uncle is at 10.2. I have not tested phosphates, but there are .5 nitrates. 0 amonia 0 nitrite. I’m using an AI prime with the blues set at 50% as long as the purples set at 50% with whites at 10% I have no idea what could be causing them to be not opening. Does anyone have any idea ideas?

