base of new leaves yellow!! Help please +rep for days!!

The new leaves of my plant are yellow. It is the new growth, from the base ya know. Just flushed. I fed them today when I noticed. What is going on? Are they just hungry? Thay are on day 2 of flowering under a 600watter. Waht is going on? Should I feed them nitrogen?

I am feeding foxfarm Bloom and AN Sensi Cal Bloom. They are in FF OF soil. 600watt. HydroHut that has been fixed for the problem they had.

could be from the recent flush?

Why the flush?http://www.weedbay.net/overgrow-thebook/PlantTrouble/Merged.htm

usually lower leaves will start to yellow and die off in veg and flower depending on the plants usage and maturity or light penetration. when the plants get large and no light gets to the bottom of the plant they dont need em anymore.it could be a N def. but who knows without any pics!

It is hard to diagnose without pictures. From what you have said the leaves are turning yellow the new growth. Is this growth at the bottom or the middle or top. If it is in the bottom that is typical especially if the light is not penetrating the canopy. I usually LST mine so the bottom gets ample light. If it is from the middle or the top, you might be experiencing a nitrogen deficiency which is understandable several weeks in flowering state. Hard to help you out without pictures. Best of luck.