Algae & Rockwool - How do you deal with it?

I have been using rockwell for 12 years and i think it is great . I just use white cotton rags to cover it up around the base of the plants.

rockwood and lavarock/clay pellets work great for hydro. but all will grow algae if left in the light. just had this prob in my system, easy fix. i use mesh pots with the medium i just talked about and covered with a pot lid same size as my pots. actually ordered them together as a set. anyway try some mylar, white plastic, lids, anything to keep the light off the tops of your pots. also check your other parts of the system, you shouldn't use clear tubing or im my case white buckets. i covered my buckets and cleaned everything nice and finished my grow. next time around had no problems. hope that might help.

i just cover the rockwool with clay pebbles,same as the grow media.the top of the pots dont get wet so no algae grows when ive done this.

Those white styrafoam desert sized disposable plates work in a pinch, too. Just cut slit to center, and make center hole large enough to accomodate stem. Cheap and easy netpot cover.



b0nger

ahhhhhhhh the plate idea sounds good ^^^^^^^^^^^^^

Fat, dont tell anyone, but I stole that idea from Weedhound. I gotta give the gurl her credit when credit is due.......LOL Get creative bro, you got all kinds of shit laying around you can incorporate into your grows that costs next to nothing. Thats the beauty of this hobby. Best of luck with yer grow.



b0nger

I have been using thick Black trash bags:thumbsup: cut to fit the buckets. Cut a slit and a hole:thumbsup:. This is reusable:thumbsup::D, no mold and I use a air stone in the main resivore. All water /ferts area are covered with black plastic.
My tank is outside in the ground and is also covered with 3 1/2 fiberglass batting.
Note only have grown for a few decades so still prefecting growing.:pimp:
Automated system using a old computer and Relayrunner program. :thumbsup::thumbsup::thumbsup:
Plants happy me happy , world happy, except for a few grumpy people.:(