Second plant has an issue

This plant was a random bag seed I believe was sold as banana punch the leaves are big and fat so I think it’s indica. However I’m waiting on the soil to get here to transplant it to a 5 gallon pot therefore they are still in the solo cups. It is two feet away from a 300 watt led light in a tent. The temp is around 79 degrees. I admit the tent is a bit hot and I feel thats why this is happening however it could be root bound aswell but I doubt it. Any tips on what this is and how to stop it from progressing? Fox farm ocean forest soil and was planted about two weeks ago. Also I may have dropped a bit of water on the leaves when I was giving it water would that start anything like this?
 

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