When should I add nutes to DWC?

I use rapid rooter cubes btw and have had great success. Peat, like Harbinger said, is a bit of a pain.

Begin nutes sometime in between the second and third week. You can use Silica and beneficials like Hydroguard beforehand, but no NPK nutes. Side note: you have some twisted beginning growth. In my experience, this has been from letting the cubes get too wet. This puts your root system off to a bad start. You also have a trileaf mutation, which for me resulted in a huge final plant. Check my finished diary as I specifically followed one of these plants. I would start over honestly, but it would be a shame to throw out that little weirdo.