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Thanks, @pink. Yeah, I definitely slowed them down some. Hands off for now, and I'm practicing my patience.

Thanks (again!) for the advice -- I will definitely poke around for Uncle Bens. Regarding arguments, I once read someone's forum signature (different site) that said something like: "Arguing on the internet is like competing in the special olympics -- even if you win, you're still retarded." I...

Don't apologize @MichiganMedGrower -- I am in favor of myth-busting! Everyone has their opinion and I'm not particularly qualified -- yet -- to judge. In the meantime, if more experienced growers want to debate what's going on with my plants, that's good news for me -- I stand to learn a lot...

@MichiganMedGrower -- Got it, on all counts. Thanks very much for all your help.

MichiganMedGrower: Okay, I'm ready to believe I was overwatering. (As far as listening to strangers on the internet, I hear you (stranger...). I had been hoping for a larger selection of opinions to compare before I believed someone, but they came in slowly and I had to do something...)...

Here's a current photo, as promised yesterday:

CaliSmokes: Thanks. I flushed the soil because from the replies I got, nutrient burn seemed to be the most popular diagnosis. So I was trying to wash some of the nutrients from the soil. That certainly drenched the soil, and I haven't watered in about 5 or 6 days.

Thanks. My humidifier effort has been disappointing -- it goes up to about 50% at night, when my lights and ventilation are off -- but then gradually drops back to whatever the rest of the house is during the day, which is generally between 25% and 35%. But the good news is that the plants are...

chemphlegm: So I guess you're casting your vote for nutrient burn as the cause, right? Is Happy Frog that much less "hot", compared to Ocean Forest? In particular, would 1 part Happy Frog to 1 part vermiculite or perlite be significantly better than my current 1 part Ocean Forest, 1 part...

I've got two seedlings going now, and I'm having some troubles: http://rollitup.org/t/seedlings-with-pale-leaf-tips-pix.930515/ http://rollitup.org/t/light-burn.931255/ First grow, so all my fault, undoubtedly.

Yeah -- good point. I guess it's pretty much useless for anything bigger than a 4 inch fan -- most of them are rated at 190 CFM, which in theory would fill the bag in 2.3 seconds. That's best case, though -- once you start adding filters and ductwork to it, it slows it down some, so it starts...

Apologies to those who also monitor the "Indoor Growing" forum, but I have seedlings under LED lamps and I'm wondering if the damage I'm seeing is due to the lights. A picture: I have two plants; each is under a Nova N300S "300W" lamp, switched to the "VEG" setting so it is essentially on...

I came up with a cheap and simple way to test the throughput of an inline fan, so I could see how my carbon filter and ductwork affected it. It's definitely not too precise, but way better than nothing. And the results were surprising. The basic idea: Take a large garbage bag, tape up the...

I also just raised the lights 4 or 5 inches -- they are now 43 inches above the tops of the plants.

I think they look worse today than yesterday: (Can't swear this is the same plant as in the previous pictures -- they might have gotten swapped during yesterday's flushing... But they're both looking pretty much the same.) Surprisingly, the soil is pretty dry -- it was soup yesterday when...

With no other opinions, I'm going with nutrient burn. So yesterday I flushed the soil -- they're in 4 inch pots; I ran 6 cups of water through each of them. I'll report back in a few days when I see how it goes.

I don't think I'm overwatering, but this is my first grow -- what do I know, and something is definitely wrong. I haven't flushed the soil -- never heard of that before, but I just looked it up and it sounds like a good idea if nutrients are the problem. But now I have three different...

So it's 5 days later; they're growing, but not looking good. Here's an updated picture: I'm thinking of trying to gently extract them from their pots, gently shake off as much soil as I can, and then gently re-plant them in something more suitable. So my question: Is that crazy? Please let...

Thanks -- I'll stop misting. I could raise the lights if people think that too much light might really be the problem. Do you think FFOF is too hot even when mixed half and half with vermiculite? Probably the answer is yes as evidenced by whatever's going on with my leaves. If that's the...

Hi All, I have two Northern Lights seedlings. I planted them in soil (1 part FoxFarm Ocean Forest, 1 part vermiculite) about a week and a half ago, and they both germinated about 4 or 5 days ago. Here are a couple of pictures of one of them (I just misted it, hence the water droplets)...