Hey all! Newb here on my first grow. I've been browsing this forum among others for a while now and it's helped me out a lot so a big thanks to everyone on here this far! Anyways, I'm on day 36 of my veg. stage and was getting ready to begin flowering when I noticed a couple leaves showing signs of what I believe is a nutrient deficiency (I think is magnesium but not sure). I really wanted a more experienced opinion from someone on here other then my own, so I hope you guys can guide me in the right direction. What type of medium; soil or hydro? Soil What brand and type of soil? MircleGro Organic Choice Potting Soil Indoors or outdoors? Indoors What strain? Unknown How old are the plants? 36 days What type of lights and how many watts? CFL 6,000K 14-WATT x4 How far from the lights? 2 inches What is your watering frequency and source of water? Once every few days, sink, distilled for 48 hours What, how much and when was it fed? NPK? Feed a light nutrient mix with every watering of 24/8/16 What are the temps and humidity in the room? 70 degrees, not sure of the humidity What size pots? 2.5GAL Any bugs? None that I can see Any other pertinent info? I haven't pH'd the soil yet which I probably should do, but I did pH the water today and it came up as 7.0. I'll also add that this appears to only be on one plant and I have three of them currently growing at the moment. It only showed up about 2 days ago. I know MiracleGro is definitely not ideal for growing by any means, but before I went out and bough some of the really good stuff I wanted to see if I was even capable of growing anything at all, haha Now I'm getting really into it! Heard something about 1/2 teaspoon of epsom salt dissolved into a gallon of water and treating them with that to help with the magnesium deficiency, should I try that? Anyways, any help would be appreciated. I'll include photos. thanks!