sirdoughboy
Active Member
i have been hearing about alge build up in some peoples gardens using rockwool or hydroton. will it be safe to not cover up the tops of the pots and let nature run its course. or should i flip out and start doing all these percautions to stop it before it happens. or will it even happen at all? i leave it open now and it seems ok. but i am new to hydroton and do not want to screw anything up.