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You'll hear different opinions on flushing. If you're mid-grow, I see no reason to flush unless they were over-fed. If you're talking about flushing before harvest, some flush, others don't. Since cannabis packs on weight late in the cycle, I like feeding them a light mix the last couple of weeks. You can back off to mainly water in the last week before harvest or even do a comparison (flush one plant and don't flush another).

Added a comment to AF 

More information would help (strain, medium, lighting, feed, temp etc.). The plant looks healthy so first thing I think of is low temp. What is the temp in your grow area?

Added a comment to Fungal knats 

I've read that works but you should add micros back in after because they can't survive the H2O2. 

Added a comment to Fungal knats 

Gnatrol or mosquito bits will kill the larvae in your soil. Both have bti in them and that is what kills the larvae. The flying ones are adults and they try to burrow into your soil to lay more eggs and the cycle repeats. Wack your pots and you'll see some gnats flying but they are slow. Kill them by hand or vacuum them up with a shop vac. Main thing is killing the larvae in the soil. They eat the roots, then turn into flying gnats and the cycle keeps going. You can also try a layer of diatomaceous earth on the top of your soil and bottom feeding helps too. 

Congrats on the lights! What are your thoughts on running higher ambient temps with LED? The idea is that LED rooms need to run warmer because LED doesn't put out much IR light. Warmer temps also need higher rh to keep vpd in range. Should mean a lot less electric costs for lighting and AC. Check this article. It talks about CO2 and lighting but scroll down to see the section about raising rooms temps with LEDs.


Hey Hulk, nice seeing ya! 50 was the go to for blurple type LEDs but do you use 50 with the newer LEDs like Spider Farmer or HLG? 

Pretty close IME. 30w/sq ft works for COB and QB type LEDs. For example, the HLG 550 is 480w and will flower a 4x4. A bunch of those QB type boards are 240, 280 and 480w. Lines up pretty good for 4x2, 3x3 and 4x4. 35w will work for some strains but it's good to have a dimmer to bring it down when needed.

Yes. Seriously, rub some of that infused coconut oil on your feet and lmk if it helps.

A former member used to swear by Nirvana Northern Lights for nerve pain. If you already make the cannabis infused coconut oil, try rubbing that on painful body parts, straight up. 

My main goal for growing has always been for pain relief (although I rely on weed to sleep too). Smoking Nirvana Blackjack seems to help and most indica leaning hybrids seem to help. Better yet is dried ice kief. The best pain relief we have gotten is from canna coconut oil made from OG Kush and Blackjack. Rub the oil right on you boo boos, it's amazing for certain nerve pain that my GF has. We also use the canna salve made with the same canna coconut oil, shea butter,beeswax and a little peppermint oil. 

What is your temp and rh? what light and how close is the light?

Sounds good, give it a try. The only other advice about how much to feed is grab a ppm / ec meter tester. Mix a 1/2 strength sample and check ppm. You'll get different opinions on ppm, but somewhere around 600-1200 should work in veg.

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