I’m thinking algicide is probably a bad idea. Would a lid over the reservoir do any good? I’ll need a big lid and not be able to find one. Hopefully the green water is okay? Do you have any suggestions?
A lid over the water would be a great idea. Green algae requires light for photosynthesis. Cutting off the light eliminates them. The tank can be covered with a sheet of black plastic or cardboard.
You can also add 3% hydrogen peroxide (H2O2) at the rate of about an ounce per gallon daily. The hydrogen peroxide kills water organisms such as algae and stimulates the roots by adding oxygen to the water mix.
Readers with grow questions (or answers) should send them to Ed at: Ask Ed, PMB 147, 530 Divisadero St., San Francisco, California 94117, USA
You can also email Ed at [email protected], and send queries via his website at www.ask-ed.net.
All featured questions will be rewarded with a copy of Ed’s book, Ed’s Big Book of Buds from Quicktrading.
Sorry, Ed cannot send personal replies to your questions.