It's got a little purple on the bottom of the leaves, I've read this is phosphorus. Anyone know if it's too much or too little? Which part of GH Flora will offer more/less when I do a res change? This is a DWC setup and the water level is about a 1/2-3/4 inch below the rockwool cube with 2 long air stones in the res.
400 wat MH since two days ago. It was getting a 400 watt HPS but seems like grow a LOT quicker under MH. I'm still not sure if it will produce fruit under MH or not though. Anyone?