The plants are 3 weeks old and the leaves are turning yellow and wilting. Using jiffy organic seed starting mix, it has sphagnum peat moss, vermiculture, and lime. The water pH has been hovering around 7 and i haven't give any nutes yet cuz im a little nervous of nute burn. Using 400w mh bulb going 18/6. Do they look like they need to be transplanted now? Are they ready for nutrients? When I transplant im going to switch soils so any suggestions? Thanks!