My hydro is growing slower than my friend's soil

[Zandor]

Won't that moisture also soak the seedstarting media arounr the stem and base roots. Also, if you have algea growing on your roots what can you do to get it off after the light leak is taken care of?

I see you have found one on the reasons I don't like rockwool.

My friend is right the algi will die off and H²o² will take care of the rest.

Hey Garden Knowm do you remember how much you use, is it about 5-10 ml per gallon?