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Why does reverse polarity smoke the reds?

Welcome, and forget the domes. :wink: I program to control temp/humidity as smoothly as I can. It's enough air to prevent a reduction in co2 and all is good.

Move exhaust away from intake! Get humidity out of room with airflow or dehu.

No one is suggesting he fertilize.

Its just fertilizer in water.

I've had a 18650 ZebraLight in my pocket about 10 years... surprized a few people. :grin:

I'm not a soil grower, but It looks like one I sprouted in coco that was too hot, the first leaves were fried in a couple days. I flushed with a very weak nute solution and it bounced right back, minus 2 leaves.

240v should be fine, a few volts high isn't an issue. Don't know how Quest came up with 230v, the US standard for single phase is 120/240v. 277v is commonly used for commercial lighting. BTW, voltage specs for the Quest 325 are the same as the 225.

I'm in the same situation... You need to get humidity out of the room. Maybe one or more fans outside the door to move humid air away? Or run the exhaust duct to/out the door, possibly down a hallway? I ran my exhaust to the rooms cold air return. It helped, but I still need a dehu at times...

I've used pc fans, what ever works. I don't care about exhange rate, my fan has temp/humidity control and there are times it dosen't run much at all. In my experiance, the exchange needed to control humidity always prevents co2 depletion.

Sunlight is best in my experiance

Now you opened a can off worms! I have four brands of cal. buffers and they are all different ph, about 0.3 variation between them. +/- 0.05 accuracy my ass! BTW, the Apera storage cap is clear and seals with a silicone O-ring so dosen't leak. Basic, common sense design that seems to escape...

Used it two seasons. It's my 4th meter, very happy with it. Probe life depends on how it's used and cared for. The probe on my Milwaukee MW102 is 5-6 years old.

330 isn't bad. Mine is 650, thats getting a bit high. Never heard of a 100ppm target. Did they give a good explanation??? Sounds like personal preference for a specific situation.

Another vote for Apera. Good design, quality, value. I use the ph60

"WHO DOES THIS HARM? Independent and emerging talent, as well as ensembles and groups." “You’re going to see a decrease in international acts coming to the United States,” “Now I’m submitting documents that are 200 pages, 300 pages long just to explain why this band should be traveling...

I do like Mephisto, but auto's aren't recommended for a first grow. If things go off track, there's little time to get healthy before flower.

I've read of issues with Vivo. Not sure which specific kits you refer to, but the ACI Pro is the only controller I would buy. It can control 4 devices, 8 for the Pro +. I've used their Controller 69 for 2 years.

Or parts for a lot of them. :-(