Having MAJOR problems please HELP diagnose

Nutrients:

Ionic Bloom 3-2-6
Ionic Boost 0-5-6
Greenfuse Bloom Stimulator

Noticed at week 4 started having problems. Went to a grow shop and they said it could be a number of things. Didnt have pics or leaves so they couldnt help too much. They recommended flushing first with half nutrient level and ph water then try hydrozyme to clean out the roots. Ran that for a week and didnt notice any change so the next week went back and they said try superthrive. So it was run for about a week and didnt see any change. Which brings it to today, its currently being run with 6.0 ph water 1.2 ec. All growth has pretty much been at a crawl since week 4..its grown very little. Im hoping someone else can help me diagnose the problem to see whats goin on..

that is a deficency... your hydroshop was on the right track, you should flush the hell outa them, clean your soil make sure no build ups lockin your plant out... then give them a nice feed to replace what you flushed out (standard problem fixer)....also, hygrozyme is a epic product, that alone will help your yeilds

Sorry... I forgot to add that I'm doing Hydro in Rockwool.

What does hygrozyme do? because the grow shop said something TOTALLY different than what I have read up on RIU.
Also I would just say get some Cal mag and see if their are any changes. My plant looked the same and I gave it cal mag and they went back to normal.

You have a trace element lockout due to the wrong ph. Hydro- get it to 5.8 (not 6) And soil- 6.5

Buds is right. Everyone I know who grows in Hydro says the pH has to be at 5.8. Could be lock out. Correct that first. Then if it continues, try adding some cal/mag to the mix. Mg deficiencies look a whole lot like nute burn. In my own personal experience, you gotta really over feed to start burning them. But then, I don't use that many chem ferts either.