looks like bug eaten spots, but its not..??

so the spots look like bugs have eaten the plants... but there are no bugs, its like a layer of green has come off.....

there are a couple babies like this... not sure what it was, when i saw the first signs of the spots, i thought it could have been to many nutes, so the next time i gave it a good flush,

using, promix hp soil ph is at 6.8 water ph is at 6.7. feed/water when dry,

Looks like the start of a cal/mag deficiency to me. Either that or you dripped nutes on that leaf.

ahh! yes that is what it probably is! thank you! i know i dripped some nute solution on some plants but i thought i had blown it all off.