Sick, disease, nute, or all the above?

[bluehash]

These are DWC vegged in 3.5 gal buckets @ 5.8-6.0 ph using holland secret nutes and ro water, using 3ml of oxy and 3 ml of calmag per gallon. I feel like they have a calmag def but i also think there could be a disease possible also. I was told maybe use some sulfur or copper spray, but idk. Yesterday I flushed and upped calmag to about 4.5 per gal. Not all plants have this but worried it could be communicable. Seems to start lower, new grow looks terrible and leaf edges are burnt/copper looking. Any ideas? Thanks for looking.

 

[Emilya Green]

The stressed new growth is very concerning and points to the roots as the problem. How do they look, white or brown? Any slime?

 

[Rifleman]

I hope these help. Are you sure about your PH? Pen calibrated?

 

[Fuzzy Duck]

If PH is with in ideal range & their is not to much swing in it over a period of time ya should be ok, but may suggest checking PH every day to see what is going on.

Apart from what may seem a PH issue ?


I would just like ask if you are using any micro nutrients ? ye i looked at holland secret nutrient range & suggest 3 part grow, micro, bloom which ones are you using.

If ya skipped out on the micro & using RO it is more likely the problem as a wild guess...