Am I over thinking my issue?

[Sofa King]

Am I over Diagnosing? I am pulling my hair out trying to decide what is happening with my plant. I am just gonna switch to flower soon. I thought it was a deficiency but is this just Nute Burn maybe? Plant is 54 days from sprout, was supposed to be an auto but obviously it’s a photo. FFOF 3 gal pot. No Nutes till week 4, General Hydro Nutes (Biothrive Grow, Bio Root, and Cal Mag). RO water carefully pHd to 6.4-6.8 range every time. Growing under a COB and a cheap LED. Please tell me What is wrong because I’m not flowering another sick plant to finish! Thanks for any Input!

 

[Emilya Green]

You need a bit larger concentration of calmag. I can see that it is trying to work, but you still don't have enough. Up the dose and watch that green fill back in.

 

[Sofa King]

You need a bit larger concentration of calmag. I can see that it is trying to work, but you still don't have enough. Up the dose and watch that green fill back in.

For real ya? It does look like mag def and that was I was thinking but I give full dose of cal mag every water. I will up the dose for sure, thanks @Emilya. Can I overdose calmag? I know the tips burn when I went a little heavy on N so I backed off

 

[Emilya Green]

As long as you dont go crazy with it, it is very unlikely that you could OD on calmag. The plants need huge amounts of both calcium and magnesium and some just need more than others. I am perfectly comfortable telling you to double the dose you are giving now.