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I appreciate your responses, thanks. I'm still curious what it is, but I think you're right. Fungus of some kind and not pest related.

Another:

I recently flushed a set of 1.5mo+ old clones in soil (1/2gal pots) and in an attempt to help dry the root zone, placed small spacers in the bottom of each pot for 2 days to bring the soil away from the sides of the pot ~1/4inch. A few have developed this condition since. Nothing flying in the...

Cool, glad someone more experienced got you (OP) covered at least. Thanks Crab.

Also, if you ph test the runoff and it's quite low, (like 5) flush with a greater quantity of water @ 7ish, as opposed to a smaller quantity @ something like ph 8 or 9+. I made this mistake personally. It can cause something called osmotic shock which is no good.

Well it doesn't look like pest damage to me. Ideal ph range for soil is 6.3-6.8. In FFOF,, you should be able to use tap water @ 7+ ph and have the soil bring it down to that appropriate range. If I had to guess specifically, I'd say your leaf spots are a cal deficiency due to low ph lockout...

Agreed, make sure you check the N-P-K of any cal/mag supplement you may use to ensure you aren't accidentally doubling up on any N that's already present in your medium or nutrients.

I grow in soil. I fill a 30gal reservoir from the tap, add 5-10ml per gal of hygrozyme, and then allow to settle, dechlorinate, etc with a couple air stones in it. -If I add Great White to the reservoir and then wait to use the water for a few days, will the beneficials still be alive/viable...

Thanks for posting this, I learned quite a bit.

Happy to help

I emailed Solis Tek asking what their suggested lamp height above canopy is for my specific bulb and they sent me this great block of general info so I thought I'd share: Generally 3-4 feet above the canopy is recommended. We recommend adjusting the height of the reflector so that the top of...

I've only cloned using rockwool cubes, but there are a few things that I've learned along the way that have made huge differences. -Adding a "zyme" product to the cubes' presoak(also make sure it's ph 5.5) has eliminated mold/rot issues and reduced the rooting timeframe -Cutting just...

Awesome tip, would I be correct in assuming that you would apply just after lights-off? Circulatory fans off?

Not the most efficient way of eradicating them, but hey, it's unprocessed protein.

This is the direction I'm leaning too. Lack of oxygen from watering too often. The volume of water/nutes you're adding sounds fine. The leaves look reasonably healthy but the lack of perkiness could be from the 24hr light or you may be overdoing it on the H2O. It's the smartest thing to address...

I think you even put it lightly, my friend. It's appropriate to say that we set the stage for ISIS to thrive. Sure, some of the dictators we removed were committing grotesque violations of basic human rights, but they were a far less complex problem on a global scale.

Same pic before photoshop.

Say what you want about the GOP being intelligent, but careful about assuming that anyone of us like Hillary. I have a pretty left-leaning group of peers and zero of us would prefer her over Sanders. She's too much of a liar, even for a politician and her heavy involvement in our current...

Not sure which vote(s) you are speaking of specifically, but I'd imagine if it were in the past year, it was to secure a more "mainstream" voter demographic. It comes down to every politician's dilemma: popularity/success vs ethics. If it was before that timeframe, then it would seem that he...