Not looking very health

Hello help. Ok I’ve tried and failed every time .now I need help . Seedlings are up planted in a seed starting med. I watched a video that said they need nutrients soi fed a couple days ago with a real dilute fox farm nutrients ,now they look not as green as they were I’m afraid to transplant yet because that’s were I’ve lost some of my last attempts …I bought frog dirt for this time … I did put some food grade dicigious earth on these as I saw some little bugs …any thoughts .when I transplantEd last time I think the light that came with the grow room was too strong …?