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temp under the light is also measuring radiant heat which is not as dangerous as ambient heat. You can get accurate temps on the tops with a laset temp probe, but that isn't necessary. If the heat outside the direct light goes over 75. it's getting too warm. Plan on planty of AC when it gets hot...

It's enough for now but as the plant gets larger, you would improve yield with more light.

I'm all in favor of helping the plant and optimization. But there is much disagreement over what that constitutes. For example, I've never seen any persuasive evidence that res changes matter much. I think a great deal of what gets touted as optimization and "if you don't do this you're not a...

I still don't see the need for it. And it will definitely kill all the bacteria and anything else, as will 3% h2o2. You just use a couple tablespoons per gallon instead of a couple drops.

3% h2o2 is just fine and I get mine for 88 cents a quart.

The brown might just be discoloration from nutes, or not. I say when in doubt use h2o2 and kill everything in there that might be a problem.

What's the humidity outside the tent? One possibility is to lose the tent. It seems like only about half the people who use them really need them when they stop and think about it.

Don't go out and spend a lot of money on some hyped system. Start with simple dwc and build it yourself. That way you learn how and why it works, and you are in a position of knowledge to expand in whatever direction you decide to go. Don't be influenced by ads.

In order: 1. use an air cooled reflector 2. use coolers instead of buckets 3. put ice bottle directly in res - in a cooler, one will work for 24 hrs 4. add more air conditioning 5. be a sucker and buy a chiller

How long do you figure it could grow in this clearing in the woods before someone comes across it and takes it? or tracks it back to you?

I've used expensive Boss Hog diffusers and compared to good airstones, I see no difference. Maybe smaller bubbles are better, but it's having enough that is important.

I suggest you formulate specific questions and ask them.

There's no point in weighing when wet. What can you possibly learn from it? X% weight loss after drying is just an estimate and will vary wildly. I never weigh anything until it has had at least a 30 day cure after drying.

Looks like flower to me. I'd go to 12/12 with whatever light.

You're using too much nute too early. If you want to keep them upright, cut a toilet paper roll to the right length and put it over the seedling so it can lean on it.

I use this one

I got 5 of those seeds. One didn't germ, two didn't sprout, and one just died inexplicably. The one that is left sounds like yours. It is 7 weeks old, but it will look fine and an hour later it will be all droopy for no apparent reason. Then it will bounce back, then it will droop. The buds are...

........go for it

Advice = learn how to formulate good questions

Well, you have two photoperiod and one autoflower. There's an issue right there because 2 will need 12/12 light and one much more. I grow photoperiod northern lights from Nirvana almost exclusively. It is a great strain for a new grower - old and stable genetics, very forgiving and doesn't get...