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Sorry missed this. I run with about 10% run off. So yes DTW.

Like growmau5 said it is more likely that you are either underfeeding or not getting enough CO2 than not getting enough calcium or magnesium. Check those issues first so that you dont throw the nutrient balance off. Most nutrients have been worked out long ago to work perfectly with marijuana...

The Jacks 5-12-26 can take a little longer to fully dissolve some times so Some of us use a concentrated solution which is mixed in advance. I make mine so that it is 10 ml of concentrate per gallon of final nutrient solution. Super easy.

The real difference between the 5-12-26 and the 20-20-20 is the chelating agent. The 20-20-20 uses EDTA and the 5-12-26 does not. Instead of EDTA it uses sulfur. That is why the calcium nitrate is used. With out the EDTA the calcium would bond to the sulfur and settle out of solution as gypsum.

Yes it is dry. And what I posted was for coco. I have never used it in soil.

Jacks 5-12-26 and green house grade calcium nitrate. JR Peters sell both of these. But they mark the calcium nitrate way up. I get Yara brand local for about $22 for 50 pounds. Much less than JR Peters charges for their calcium nitrate. Just make sure it is the correct calcium nitrate. Ask...

I run Jacks in coco and never had a burn or deficiency except with heavy feeders like chemdogs. Running under LEDs I ran into everything deficiency. Upped the feed 25% added magnesium sulfate and it seems to have cleared up.

He has a girlfriend? Is she hot. Wait never mind I saw his hair cut.

Forget I even mentioned it. You are not understanding why I will wait to buy them. And I dont want to explain it any more. And frankly it does not matter if you understand why I dont want them yet.

Let me put this a different way. I am running LEDs for the efficiency period. If the light goes out to the side that is not very efficient. And if the pattern looks like a HPS PPFD chart with a hot spot in the middle that is not very efficient. In other words I want a reflector to channel...

Huh how is thermal paste going to stop light from going to the side? If you put a 200 watt some where you will get light loss. It will light the walkways or be lost on the side of the grow area. Till that light can be focused I am not going to purchase the cob. If it has a large foot print I...

I dont want to spray light all over. I want it focused on my plants. I am sure there is a lot of light going to the sides. I want to know almost exactly how much light is going to my plants. I dont want to guess how focused each chip is or is not. Do these chips have mounts yet? If I...

I wont be getting a 200 watt cob anytime soon. They have no supporting items like reflectors, mounts ect. When those come out maybe.

All the seams were taped. The box just got snagged on something and it ripped the side open. None of the taped seems were open. I like their rates to but a little pride in your work goes a long way. And so does one or two idiots who are only concerned with getting a pay check. If that women...

I got my drivers on Monday. Post office ripped half the side off on one side of the box. Flipping idiots. No damage to the drivers though. Thank You PLC.

I can imagine. I left some bubble waste that had ice in it to let the ice melt. I forgot and three days later it was the worst smelling mess ever. The worms loved it but god it was horrible to strain the water out.

I suspect a short after a COB. On the neutral wire. Here is why. The power goes to the COB and it lights up. Then after the COB it grounds out and the driver starts sending more juice to the COBs to keep the voltage constant. The COB gets brighter then the driver drops the power down to...

Did you clean out the metal burrs when you drilled threw the heat sink? If not you could have a short on these wires.

Check to make sure all of the connections are tight. If you have a COB holder make sure the conection to the chip is good and clean. Look to make sure any thermal paste is not on the the COB plus and minus contacts. Check your connection between the driver and the wire to the COBs. If that...

If you use a washing machine making bubble is not much work at all. You need a mesh bag to throw in the machine. Then cut the bottom off of some buckets and place your bubble bags in between the cut down buckets. Throw the mesh zipper bag in the washer with ice and water turn it on and go do...