Light burn, or more?

Grit99

Member
Rdwc system clones transplanted 8/13
Temp: 80-83
Humidity: 40-60
Res temp: 67-68
General hydro nutes with Lucas formula 580ppm last check
Ph-5.8-6

Is this light burn or do I have more going on? Please let me know if I need to supply more Information. Two diff plants in photos

Thanks everybody for helping!
 

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Looks like a root problem to me, but iv never done DWC. Someone else might have more info. Any possibility you are mixing nutrient solutions in the wrong order?
 
Root photos per request. ( more than 1 plants worth of photos for roots, all share same res)
 

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That is not light stress.

Bring your ppm up 25% but use all your 3-part nutes at a 1-1-1 ratio to do it. Lucas Formula is fine for after the stretch but during veg they need a balanced diet. There's a lot of the Mg in the Grow portion along with the N and with Lucas using half the Micro as Bloom your N is low as are other things a needy plant like pot needs to thrive.

If you're planning a nute cahnge then reload with 1-1-1 and add a dash of Epsom Salts too. Tsp/gal is lots unless treating a deficiency and I think you're a little deficient in a lot of stuff tho a good feed with all the nutes should fix that.

I've done about 50 DWC grows since '01 and have tried all sorts of nutes and combinations. I use AN 3-part but it's the same kind of things in each bottle as GH. I only ever used RO or distilled water as stuff in tap water can screw things up too. When pH Perfect came out it cut my workload in half not that DWC is much work at all compared to doing this organs stuff. I think I'm going back to DWC pretty soon just to get a break and a lot more pot! :)

Roots.jpg

:peace:
 
Raised ppms with a res change and lowered my light output about 10%. The girls are looking very happy, I’ll take some pictures when home from work today. Definitely appreciate the support from everybody!
 
Rdwc system clones transplanted 8/13
Temp: 80-83
Humidity: 40-60
Res temp: 67-68
General hydro nutes with Lucas formula 580ppm last check
Ph-5.8-6

Is this light burn or do I have more going on? Please let me know if I need to supply more Information. Two diff plants in photos

Thanks everybody for helping!

obviously take everything into account environment etc etc before making any decisions about feed etc

this list can come in handy
 

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