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Old 07-25-2013, 05:42 PM
Stan Stan is offline
Senior Member
Join Date: Apr 2011
Posts: 213

I don't see any on the rocks so I'm guessing you have the rockwool exposed to the sun as it is in the picture, right? If yes, that's the reason why it looks like it does. You need to take the tomato plant out from that rockwool and put the plant in a new 1. Then make sure you plant it deeper and cover the rockwool totally so it doesn't get hit by the sun.
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