nutrient burn

So, I've had some white spots here and there on my plant for a while. This is my very first plant so haven't been through many issues and treating them. This doesn't look like spider mite damage (can't find evidence on the underside of leafs) and doesn't quite look like WPM. I'm thinking more...

TLDR; read last paragraph Hey guys, so I've learned so much about plants in general thanks to you guys. I'm currently on my first grow using FF ocean forest soil. Seedlings are doing great (I think, peep my journal if you can). At 5 days they are all working on their second set of true leaves...

So, I transplanted some Royal Kush clones into standard 2 and 5 gallon pots. The soil is last season's FFOF, with some old roots and organic matter in it, but had been rained on all winter so it should be pretty much flushed of nutrients. Ph'd @ a 6.8. Just for kicks, I added a dash of Anasazi...

Background: First grow, 2 plants (see title) In tent, growing under one 87W LED, three 23W CFLs, and one 42W CFL in coco coir w/ perlite. Day 87 from seed Temperature was an issue that I've resolved with an A/C - lo/hi of 63/79F; humidity is pretty much in check, too On around day 32 of...

Wondering if anyone knows what's causing the yellowing of the leaves here? Plants about 2 weeks. Thought it could be nutrient burn but then again it seems any discolouring can have a thousand reasons ..

Wondering if anyone knows what's causing the yellowing of the leaves here? Plants about 2 weeks. Thought it could be nutrient burn but then again it seems any discolouring can have a thousand reasons .. Thanks

My Lightsaber is showing a deficiency. 5 weeks in flower grown in super soil. Recently added some budswell and not sure if this is nutrient burn or cal-mag deficiency. Need some help if anyone has experienced this before. Thanks!

Yeah, so oddly enough my smaller plants seem to love FF trio nutes at 1/3rd strength, whereas my big plants are now showing nutrient burns from the smallest amount. I didn't even feed them that much, AND i haven't fed them in over 2 weeks Doesn't make a lot of sense. Advice? I'm just gona stop...

Hi Growing 4 Critical Mass clones in 18L pots in Coca/Pebbles 60/40. Water to waste every two days of 1.5L Canna A+B, Boost, PK - this is the 3rd day of the PK week, 4 days to go. Foliar feed everyday with a 25% of nutrient solution and Wet Betty. 23rd day of flower. 400w HPS (9" above...

Hey All!!! I just liked my DWC lids with space blankets, yesterday. Since then I've noticed these spots on my plants. Can anybody help me out here? I'm using GH Flora Trio. Is it light burn, calcium, nutrient burn or under nourished... I'm at 400 ppm. PH is good!