Howdy, How is soil ph and yes it looks to wet easy to do in big pots with small plants . See if this basic chart helps i dont think you necessarily need to feed them let the pots dry out and check soil pH good luck ✌️
How would doing anything with the light help? Its a soil condition! Well ok🤔🤔🤔 but i think if they look bad flush if they look ok roll with it Hope that helps ✌️