If possible you may want to check the PH of your soil. Until the PH is within an acceptable range 6.0-6.8 it is tuff to diagnose some of these problems. If I had to guess I would say probably too much nutes though. Flushing in this case would be the right thing yes.

Herbus
Herbus Reviewed by Herbus on . Newbie, nutrient/heat problems during flowering Hey guys, first timer, so things are a little confusing to me. I'm currently just growing one female in a soil medium, under one 400w HPS, thats been flowering for about four weeks now. Up until about eight days ago, it was looking realy pretty, leaves pointed up towards the light, doing just fine. I watered the plant with half a galon Poland Spring, mixed with a MG Rose Fertilizer (soemthing like 16-24-18, i dont have it handy). I started noticing yellowing and necrotic parts of lower Rating: 5