Need some Help guys:) when I increase ph to 6 or lower , rezervuar begins bubbling when I open the air pump. That's not normal bubble ,likes soap and after a time comes out pot holes. Do any one know the reason ?
i have 400w hps for flowering and 2*36 w t5 for veg stage.
one exhoust fan and one intake air fan .
Are these enough for my first grow , please some advice