I am growing in 4" rockwool blocks. Would it be a bad idea to cut 4" squares of aluminum foil and place them on top of the rockwool blocks(with a hole in the middle for the stems)?
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I am growing in 4" rockwool blocks. Would it be a bad idea to cut 4" squares of aluminum foil and place them on top of the rockwool blocks(with a hole in the middle for the stems)?
bad idea ,
prob. would control the algee growth but inturn alum. foil creates hot spots via. reflection .
peace
crispi
i use pieces of cut up black plastic bags.
Quote:
Originally Posted by JackdaWack
There you go a good idea! :jointsmile:
You can also make one more perminate by using black pond liner or panda plastic with the white facing up is the best. :D