Riots should be in cells helping hold moisture but at this point id put those riots in the coco in small cups like solo cups drilled at bottom. Youre mixing perelite in the coco at least right?
If you have a flouro or t5( whiter light)
Old undercabinet 1 footer laying around maybe?. Those can rest right at the top of dome n wont burn em.
As far as the sanlight ive never heard of em til now. Led i would keep a little distance on cause they can burn. Id pull it back to 12inches away.
The yellow on leaf is prob a waterspot burn where it rested on tip of leaf n led got magnified. but no big deal. Looking at pic there is something at bottom of stalk on that one. Where comes out the riot. Seed shell maybe? Check it out n free any obstructions.
No nutes just good clean water.
All is assuming ph is right. First always check ph. That will cause yellow too n a lot more if it aint on point early. You want that humidity up too. You got prop dome n mat right? Spray the tray til its gat water sitting. Itll evap quick enough. Close the dome n def get further back than 5" on the led. Id say you want rh steady over 55.
Im no pro just my opinion. But if you got an old t5 ir flouro tube light thats your baby starter.
