question

i have three small plants under 4 45 watt cfls. theyre planted in promix and im using nsr greenleaves 2-1-3. and well one of them got a big yellow spot on the leaves while i was at work and i know they never touched the lamps. but it is possable that the temp couldve spiked but i just wanted to know if its a burn or what

PH fluctuation. I would say flush your soil. Before you do that lets see if a soil grower can confirm this diagnosis.

yeah i checked the ph its a bit high 7.2 i think
im going to flush and put them in bigger pots while im at it

I have a Question.I have 3 plants that are almost done flowering and the leaves on 1 are turning like a lime green color but the buds are a deep green.The other 2 are fine.I am new at this and i dont test ph or anything else like that.I would appriciate any help..

leaves turn light green and yellow and die during end flowering especially the bottom ones

Well it turns out i had spider mites.So i harvested and all is good!!!