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At the time they were above the water, but I've since started using micro pumps along with the air stone and get better results. I run them in a mild bleach and soap solution overnight to clean them. They can be disassembled which is nice. It turns out in a water based system the stems need to...

The instructions suggest both, or rather the first method suggests one vertical cut held open with a toothpick while the second method suggests removing the outer layer completely so the stem can't transport downward. I'm thinking it would be good to have a spare plant set aside to experiment on...

Are there any potential contamination issues with this technique?

Thought I would drop this tidbit of wisdom here. Until recently I always used Maxigro/Bloom for hydro. I had compared it with other brands years ago and didn't see much difference if any and Maxi series is cheaper. Only thing is, no PH buffers and in a 24 hour period the PH can go from 5.8 to...

Hey PSUAGRO, I'm doing well thanks. Haven't been tinkering with lamps, but have been playing around with micro pumps in my grow buckets. Finally have a RDWC setup that I'm happy with. Hope you've been good.

I'm aware of them... very nice lamps! I guess what I'm asking is, has the efficiency of Bridgelux, Samsung, Citizen advanced over the last year? I know I can build 60% efficient lamps underdriving the 1825s I have from a few years ago. I'm wondering if higher efficiencies have been achieved in...

I've been away for a while. Was just rummaging through my stash of parts. I need to build a lamp for a 3x3 tent. I have Vero29v7, 150mm pin fin sinks, HLG 300w driver so everything I need. But it's been a while and I'm wondering what would be a high end build at the moment? I still have 200w...

Bottom line, you can get great yields at 65-75. Take precautions to keep the rot away. Chiller not necessary. It's another thing that needs to be cleaned. You'll need to cycle a sterilizing solution through it between grows. Want to grow root rot... use a chiller and don't sanitize it properly...

Maybe. I mean, you'll find some people who swear by peroxide as a preventative but I prefer to use beneficial bacteria to inoculate roots. A one time treatment just after the clone stage is all it takes to prevent root rot for an entire grow. I know someone who doesn't use anything, works in a...

Still not sure what the problem was at that particular location. I've used various brands of white emitters, various K and CRI ratings, and had success with all of them. I'm playing around with CMH in an area. Doing well but so far I don't see a reason to quit using white LEDs. If I built a lamp...

You would want to multiply the final values by 3.78. You could add a line below the values per gallon numbers to do it automatically. Another way, if you would rather just have the PPMs per liter listed is to go through the formulas in the right 3 columns and change every value from 264.17 to...

Old thread, but I've done both. Pythium (70% of root rot cases) grows just fine at 65F. Water at 75-80F can hold enough oxygen to keep the plants healthy. Chiller is unnecessary.

The new 50gph pumps have arrived. They don't have as much flow control as the first two I ordered so I'm turning them on to check and adjust PH. Takes about 15 minutes. I'll be converting the gravity feed tubes to 3/4" on all my buckets eventually. I've already got one system set up that way and...

It's got that stringy re-veg look at the tops. Sounds like it's worth keeping up. I think I should do some pruning, maybe cut some tops off. If they go through stretch again they may run into the lights.

So the timer broke and I didnt catch it for about 2 weeks. I'm wondering what to expect if I put those plants on 12/12 and restart the flower cycle. Or would it be better to start with fresh plants?

Clone buckets I made, just a small bubble bucket. Easy to clean, stone and air line get replaced... but it would work the same in rock wool/root riots. That's what I did my testing with.

Welcome. The product I use first couple weeks of veg is called Recharge, multi strain powder product, and has some molasses. That being said, it's a minuscule amount of carbs, just enough to kickstart microbial growth. There's a lot of controversy about whether roots can absorb carbs. I have...