I don’t know what this is can anyone let me know please. I don’t think it’s messing with it but it was a patch and now it’s growing so I’m a little worried
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Are they in clear pots {cups}?
It is a cup
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That is algae ,I think .
What are you going to re-pot them in?
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I’m going to put them in grow bags
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I would re-pot them in grow bags
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Are you using well water? That might contain algae or something.
I use grow bags and highly reccommend. I use a grate to keep the bottom off the floor where water accumulates. When watering it does tend to leak out sides so I take them out to water and let drain before returning to growing area. I dont want water in my grow room floor
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Algae…I wonder if its light…Is it really bad for Cannabis…? anyone…
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But isn’t it too early for a transplant that are only two weeks
I’m using tap water is and is algae bad?
How long have they’ve been in the clear cups and post some above cup pics. Place the clear solo cups in a darker solo cup if you have them or wrap dark tape around the clear cups. There should also be drainage holes cut in the bottom of the cup. transplant to forever home if their old enough 
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They have been in clear cups too long and the light is causing algeal growth and when you have that much roots growing at the outside of the cup you can transplant
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Exactly what @OGIncognito said. The sooner the better.
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