You always get mold and algae growth on rockwohl...Happens to me in every grow, until I started using rockwohl covers. Solved my problem completely.
martyrprojekt Reviewed by martyrprojekt on . what timmers to buy can anyone recommend a good timer for for an areoponics systems I was just watering continuous and created a mold in rock wool. was told to use a timmer to give rock wool some time to air out. does anyone know of a good timer. Rating: 5