Mold on rockwool blocks

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Mold on rockwool blocks

Postby moosek » Tue Oct 03, 2006 7:28 pm

Developing a worrying mold on the top of my rockwool large growing blocks, its very dark green and slimy and wet and is begining to deteroate the blocks. About to start flowering and don't wan't that to affect anything.... Attached is a picture of the situation. I am watering from the bottom soaking the rockwool in warm water with nutrients. Not spraying or anything from the top. Help would be great!
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Mold on rockwool blocks

Postby Mentalbhoy » Tue Oct 03, 2006 7:33 pm

it just alge, it should be ok, just cover the top of the blocks...
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Mold on rockwool blocks

Postby Shifters » Tue Oct 03, 2006 7:33 pm

Looks like algea not mold and from what ive read it shouldn't do any harm to the plant.
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Mold on rockwool blocks

Postby moosek » Tue Oct 03, 2006 7:42 pm

should I put a peice of paper or fabric over the affected area?
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Mold on rockwool blocks

Postby ganja man » Tue Oct 03, 2006 7:54 pm

Try to cut a fin layer of rockwool off the block, what ya think?
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Mold on rockwool blocks

Postby stonner » Tue Oct 03, 2006 8:23 pm

had the same problem , all you need do is get sharpe knife slice thin slice of top of rockwool (being very careful not to cut stem)then cut peice black plastic same shape and size of your rockwool this will solve your problem
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Mold on rockwool blocks

Postby 2dogs » Tue Oct 03, 2006 9:50 pm

Just get a piece of panda plastic (or similar) and cut a piece with a slit for the stem to go in and cover the cube......... Problem gone
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