Hi all, This is my first grow. I'm started from bag seed while I get my equipment together for a DWC setup. I have 3 plants in 4 gal pots in a mix of 60% peat, 20% perlite, and 20% vermiculite. I'm using Technaflora nutes (and am very careful about following mixing directions), have a 48" - 4 bulb T5 6400k light, & 2 - 2' T5 6400k on the way, but they are on my screened porch for 10 to 13 hours a day in direct sunlight and later in the day indirect sunlight. 2 of them are right at 12" in height, and the other about 18". They are about 5 weeks out, and have been doing really well until the past few days. The tops are turning a mottled lime green on the margins, with darker centers, and new growth leaves are also lime green (see below) The pots are kinda heavy, so I'm guessing that they may have been over watered (my brother is also involved), but read that it could be a lack of iron and sulfur. I'm planning on letting them dry out for a few days, but what should I do about feeding in the mean time? It's basically a "soil-less" setup, and I'm not really straight about feeding this grow media anyway. Thanks for the help baldylox