I have only read bits and pieces about Cal Mag; what does it do? I made a point to look for it last time at the hydro store so I know they have it.
dejayou30 Reviewed by dejayou30 on . Suuuuuper High pH!! Finally, my friend has his set up ready to go; all temps within range, E&F working with no leaks, timers working, etc. But he tested the pH with a liquid test kit (its all the hydro shop had in stock besides $120 testers) and it read over 8.0. We waited a couple hours for it to run through a pump cycle once or twice and measured again and it still said 8.0+. Why is the pH so high and what should he do about it? He is ready to germinate the seeds but doesn't want to put them into the system Rating: 5