SOS Newbie needs help

Hi all,

Second time grower here and still riding the struggle bus. I’m trying to figure out what’s wrong with my plant.

I have lime green leaves and it only seems to be getting worse. I’ve done some extensive reading and seem to be following the basics

Some of the basic info:

Agent orange regular seed
2x4 tent
Temp- lights on/off 74/70
RH- 60-65%
Using RO water & advanced nutrients (pictured) all ph’d to 6.5
Water with plenty of run off

This was my plant last week

This is my plant today

Long story short I have been using advanced nutrients feeding schedule at about half strength. Last week I fed the plant at full strength thinking I had a nitrogen level issue. The problem seems to be getting worse. I do a drought/flood type watering and seem to only need to water every 5 days. Everytime I water my ppm runoff would be in the 400-500 range and ph of 6.0 so for the past few weeks I have added nutrient at every watering.

Any and all help is much appreciated!