is it feeding time?

My white rhino is 24 days from seed now, I think it is looking good but I noticed yesterday that on some of the larger leaves the veins are turning a lighter green (2nd pic). When and if I feed do I put enough of the fertilized water into the pot to creat a little run off, or just put a little in there at first? Im using Ocean Forest soil and humboldt nutrients (organic). Here are my baby girls!

your plants look the perfect size to start feeding. just start with 1/4 strength and water like you do normally, then slowly work up to 1/2 strength then full strength each feeding. Underfeeding will not hurt your plant but FoxFarm soil retains alot of moisture so don't overfeed.

water as usuall just use the ferts everyother watering, and increase dose slowly