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Forget what I just posted! If you nutrient strength is sky rocketing and your ph is plunging there must something else going on. I dunno .... but when in doubt .... FLUSH!

Just a guess, but it looks like Nitrogen deficiency to me. Ni is a transferable nutrient that the plant can pull from one place to another. Looks like it's sucking the you know what out of the bottom leaves. A Magnesium deficiency can start out that way, but it's usually a more uniform...

I think you guys got me on the right track. I did some diggin' in the stickies on mag deficiency and saw something about being to acidic ...? Then I ran across the following chart. Shit. I've been running my pH at 6.0. According to the chart Mag doesn't even get absorbed in soil at 6.0...

Thanx for the response and ya got me reading the bottles again. Turns out there's NO magnesium in Liquid KoolBloom. The FloraBloom has a 1.5% magnesium solution tho. I'm gonna back the KoolBloom down and start working the Flora up to get some mag in there. We'll see what happens ........ Thanx...

2 pics attached. One overview and the other is my worst case yellowing. Starting to curl! The particulars. Sealed Box. Soil. GH Expert Drain to Waste Nute program. Water every 4 days. 2 400 watt lights. CO2 on a timer. Sour Diesel 6 weeks and 3 days into Bloom. Currently feeding the Aggressive...

225ppm out of the tap. I arrived at the 4-8-12 based what I read on the bottles. GH recommends 1-2-3 tsp per gal. That'd be 5-10-15 in ml, but I thought I should keep it a little on the conservative side. I've been dumping that load down their throats every 3 days! No plain water. Am I...

I'm just lazy. NPK is easier to type ......

Roots Organic 77 soil. Two 400 watters on 7 plants. Tap water that I leave out for 3 days. I have 2 ph meters that don't seem to agree with each other so there is some confusion, but basically I'm using 1ml of ph down per gal which seems to be in the 6.0 range. 8" pots and they're using...

Pics in the morning. I'm not sure how long these need to flower. I was planning on watching the trichs ....

1st time growing, 5 weeks into bloom, and what I'm seeing is all of the larger leafs that are growing up in the budding part of the plants are turning yellow. It's like that part of plant decided it don't need no fuckin' leaves no more and they're getting sucked right out of existence...

I don't think there's a huge difference between manufacturers. The technology of pumping air with a diagphram is well known and when you consider all the various ways pumps are rated the watts roughly correspond. Of the 3 pumps referenced above I could only find the watts on 2. 1. 8 watts...

What a horrible thought, but yeah, how else are ya gonna know?

Does your filter fan just recirculate the air inside the tent? I would think if you're not bringing outside air into the growing area of tent your co2 enriched air should stay enriched. At least until you open the door .... As far as when you should turn it on I was under the impression the...

If I'm understanding the relay's to use 1 ballast for 2 lights, you're using the ballasts for 12 hours in one room, and then using the relays to switch the ballasts to run 12 hours in the other? That makes sense. Where didja get the relays?

No expert on me, and I could be reading your post wrong, but I if you're using RO water I believe Cal/Mag is a requirement. Calcium and magnesium are normally present in tap water but get removed in the reverse osmosis process. Again, no expert on me. I haven't grown so much as a twig yet! But I...

That's a good question that my studies haven't found a definitive answer on yet. The general opinion is you can't have enough bubbles, but in my shop I've got a 220v 6.5HP compressor with an 80 gallon tank. I'll bet I could blow the pots right out the top! What I'd like to know is how wet the...

I've only seen that done with clones. With less leaf the plant will devote more energy into root production.

Gosh Weedler, I wish I knew! You've answered so many Q's for me already. Might have to be an early harvest?

Well if BH can take pics in the dark with no harm, I think my buddy's on the wrong track for why 2 of his plants re-vegged. I may not even tell him tho. Shit! Did I mention he grows some good bud?

My partner's been growing for a year or so and recently had 2 of 9 plants in his flower chamber start re-vegging. They were right at harvest so no loss, but he thinks it was because he reached in there during the dark cycle and flicked a bic to show off his crop to a friend. The 2 that started...