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I had bad experience with H2O2 once, all my roots began do decay until I flushed it with RO water. Trying to stay away from H2O2 since then, also it kills the good bacteria from Aquashield. So I see no reason adding it up to the reservoir. But thanks anyways bro!

Thanks. I've been using the same chart btw, haha => https://www.rollitup.org/hydroponics-aeroponics/200589-reliable-ppm-chart-marijuana.html The burn didn't occur overnight, but it was happening only to one of the leaves so I thought its not gonna be a big problem. Until the problem spread to...

Yeah vegged for ~800, but they didn't show any signs of nute burn then. I guess they started appearing only now for some reason.

They are at first week of 12/12, after 4 weeks of veg.

This happens to my lower leaves (at PPM of~ 750-850, 5.7-5.9 pH):

6/24 Three days on12/12 Sup guys, switched to 400W HPS three days ago and replaced the res water with my blooming nutrient formula . Now for 9 gallons of RO, they are getting: - 15ml Sensi grow A (cutting down on the N) * - 60ml Sensi Grow B * - 90ml Advanced nutrients bloom (from the "Micro...

The ballast % is good for flowering when you are few weeks before harvest you can start lowering the amount of light the plants are receiving. I'd still get some CFLs from Walmart, they are very cheap. 5$ per bulb + $5-$10 for the socket.

Thanks mate. You should really try a DWC setup one day, no need to mess with the soil plus everything grows way faster than soil.

There is no doubt that cannabis plants can grow at temps even higher than 90. Take afghani weed for example, the heat may get over 105 degrees for a few days. But your "plants" are still seedlings in the early stage, bashing them with 600W at 88-90 degrees will kill them. Talking from...

Looks like a female to me. Also, we are at about the same growth level. I switched to 12/12 yesterday but pre-flowers showed like on week 4 under 18/6.

What is the temperature in your tent?

6/20 It's time to attack the plant Yesterday before going to sleep I attacked one of my NL's. The main target were branches around the plant. For the sake of the experiment the other NL was not attacked. Lights were also raised, they are now about 8'-10' above the plants. pH 5.7 , PPM...

These are preflowers. They are 100% normal. I would however try to drop the temp down to ~80 F. Happened to be in the same boat with 400W MH like a month ago. Better air circulation + AC working daytime will work wonders.

Actually the height is not the issue, 6 feet is more than enough. It's the length and width of the tent that will force the plants to squeeze. LST becomes impossible because there is no place to lst :D. So you might as well grow them taller :bigjoint:.

Space may become an issue. I have a similar (if not identical) tent, and I'm already having space issues with only 3 plants (about one month old). On the other hand your plants are still young so time will tell. Good luck growing!

Nom nom , can't wait to see the final dry weight of these ladies.

6/17 Congratulations! It's a girl! (3 actually) Sup, we've got 3 confirmed girls growing up. Nice inner structure, very bushy. They are about one month old right now but I'm considering switching to 12/12 next weekend. Bagseed plant showing tiny dark spots on leaves, nothing serious. pH...

Just wondering, did you try bending the stems when the plant was in veg?

Nice buds dude, looks like the stems are barely holding the weight :D + rep

6/14 - Down to 3 plants Long time no write. My biggest #1 plant turned out to be a male, as you can see in the photos it no longer exist in my grow tent. Currently drying #1 in order to make some brownies with it. Luckily my 2 other plants are 99% female. One is still unknown but it is a...