Timmyjg6 said:
Well i see the tips of the leaves changing colors. Could be nutrient burn. But could be a few things. Check the temps, make sure they dont go over 85 deg at the top of the plant, not the room... Also is this in soil or hydro. What brand of mediom and are you checking the ph? Check these and get back to me.
I had some problems with nute burn about a month ago, but I flushed both plants and have majorly cut back on feeding. There is no discoloration on any of the leaves in that pic though, so what I think you're seeing is just a matter of the lighting and camera settings.
But I think heat is the culprit. I finally found my digital thermometer, and was surprised to see temps in my room at 100f. I was thinking they'd be more like 88, not sure how accurate this thermo is, but I know I definitely have a problem with how close my light is to my plants. I managed to rearrange it today to get about 3-4 more inches of clearance, but my 600 watt HPS is still no more than 6" or so from the tops of my plants. I have them tied back so they're further away, and one fan blowing on the light directly and another blowing against the tops of the plants as well as a large fan blowing air into the room, but I don't have a fan set up specifically for exhaust. One of my plants loves it and is thriving, it's the other two whose buds haven't grown much the last couple weeks that I'm more concerned about. They were also the ones that suffered some nute burn, so they might just be extra stressed, which is slowing down their development compared to the third plant. But besides heat, could the plants be hungry for more nutes? This is a soil grow btw. Check my grow journal if you want.
So I have two other questions. I'm using 5 gallon paint buckets for pots of two of my plants. To flush them, I drilled a bunch of holes in the bottom, and then placed them inside a second 5 gallon bucket to catch run off. Should I worry about algea or anything in the water that drains through the soil? It would be a real hassle to remove the plants at this stage to empty the drainage bucket, but I'd do it if it needs to be donw.
Second question, I'm working out of town for half the week. I watered my babies really good monday morning, than got back Wedns afternoon, and obviously they were very thirsty, drooping and such. But not wilting or anything, just thirsty, and they picked right back up after I watered them. But can it cause more stress for these plants to get real thirsty like that? They're only going about two days between waterings, but they seem to like to be watered every day, about 18 hours apart or so.