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I think my nute mix may have had too high of PPM on the past few feedings and caused some burn/deficiency on a few big fan leaves near the lights next to the largest buds. Either that or the extra nutes were blocking uptake of calcium. I see signs of both that were noticeable on the day after...

I've got seven large kush plants in the 6th week of bloom right now, and I have noticed what looks like calcium deficiency in some of the leaves that are surrounding the largest colas on two of the plants that are closest to the lights (12 inches away from the CMH315's). This deficiency has...

I bought a reverse osmosis system off Amazon for $160. It gives me up to 50 gallons a day of near-distilled water (19 PPM). Great investment! No longer filling the trash with empty water jugs from WalMart.

Photos (below) of my Critical Kush plants 32 days into bloom.

This is not my nutrient brand (chart below), but an example confirming that around 1,200 PPM is what they recommend at this stage. But if 800 PPM works for you, that's awesome. Each to his own. We're all just trying to help each other. I just share what has been successful for me.

Mine do fine at 1,200PPM with no discoloration. But the plants are massive and seem to thrive at that PPM. That's why I said +/- plus or minus. I realize some strains may not thrive at 1,200 PPM water but mine do and that's what my manufacturer's advanced nutrient schedule ends up with if I...

Yes, by all means use the cheap PH tester and make sure it's yellow. You can pick up a decent PH meter on eBay for $10 with free shipping. They are somewhat fragile so why pay for an expensive one? Also, pick up some PH buffer solution for $2 at any hydro store and calibrate the new meter with a...

What is average water temp? Do you have enough cal/mag in your water? Do you have your DWC air pumps on high, and are they bubbling sufficiently? So many things that it could be, but if you stick by these simple guidelines they should stop turning yellow: 5.9 PH 68-70F Water Temp 1,200+/-...

Just checked their website, cannot find any of the popular seed strains on there.

I've used Attitude Seed Bank several times and have always been happy with them. Decent prices, free shipping when using cash for payment, and has had good success delivering to all 50 USA states.

Everything that Superjack said. Also, you're not going to deal with any nutrient deficiencies in soil. The main things to watch out for are overwatering, too high temp, and nutrient burn.

Who knows what is in it? Could be fracking chemicals for all we know. Buy distilled water for 88-cents a gallon or buy a reverse osmosis filter. That way you start at 0 PPM (or thereabouts) and know exactly what you have in your water.

You just answered your own question.

If you have the right amount of air and water, cuttings will take root within 5 days in any medium. You can pick up a nice aerocloner that will root 24 cuttings in five days for $69 on eBay and Amazon. For a cheaper route, pick up a $10 aquarium pump with an aerating outlet on it and make a...

I have tried a lot of different seed germination methods to get plants started in DWC, and the one that was the most reliable and successful was starting the seed in the net pot that it is going to grow in instead of using paper towels, root plugs, rockwool, etc. I put down a two-inch layer of...

8-Bucket DWC complete systems with 5-gallon buckets on eBay for $169 free shipping. CMH315 (LEC315 clone) lighting systems with bulb are about the same price.

I had the same problem with 7' tall plants going into bloom. This was my solution: 1. Build a stand out of PVC pipe and put a cheap mesh garden fence over it with zip ties. Make an arch-shape with the fence and begin pushing it down over the plants. A little bending and breaking will not hurt...

Happy Daze!!

Aerate your water with a cheap aquarium pump and get clones to root in five days with just water and no nutes.

Good idea. The 5k window units are just over $100 which is a cheap fix compared to the problems that uncontrolled temps would cause.