Sick bubblegum

[screaminEagleTSI]

Here are some shots of my bubblegum clones. They were being fed one teaspoon of fox farms grow big mixed with LQ Karma every watering. I noticed some marks on the upper leaves ive been feeding with regular water now. What is causing this?

[4x5]

Looks to be the begining of nute burn, I'd just give plain water for the next 2-3 waterings, it should be fine. It also appears to be overwatered, I only give mine 22oz every 3-4 days, sometimes longer (whenever the pots get easy to pickup). Symptoms like this can be caused by PH swings too, you might want to check soil PH; however it fully appears to be nute burn. IMO

[latewood]

could be the start of nute burn, but pix are too dark. Kudos on pic size...I hate when I have to wait 10 minutes for an 8mb pik...

piks are too dark. It looks like the start of nutreint burn and 4x5 is right on...just ph'd water.

the other option is not good either...spider Mites...
I am leaning towards nuteburn though.
Others will chime in and meanwhile, you can work on those piks for us,,,OK, Yes, see ya tomorrow

lw