Red spots

[Adriftin]

Had some rust red spots appear last 24hrs.

DWC grow, ph did get low today 5.3.

GH flora series. Feeding per the drain to waste schedule. 750ppm using .5 conv.

Also some light stress from lights too close. LED lights 1000watt grow 1000watt bloom. 2000watt light pulling around 450watt.

Tried taking a pic under all three colors but not sure how well they came out.

 

[HashMaster]

Natural light pics are best...:smoking:

You supplement cal mag ?

 

[Adriftin]

I am using RO water and supply cal mag per the rec feed schedule.

 

[Adriftin]

Also I have two plants in the one tote but only one plant is showing these spots. Both are the same strain.

 

[STILLSMOKIN]

Needs cal-mag and back of nitrogen a bit.

 

[Adriftin]

Trying to fix the nitrogen problem. Need to add a third tee fitting for my chiller so I can flush before switching over the active reservoir. I run 14-16 hours chiller on my flowers then switch at bed time to chill my veg reservoir. So daily the Nutes mix a little.