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2. Yes, shot size and timing are vital for proper dryback control. See my schedules above. For vegetative growth you want higher WC and lower EC in the media, for generative growth you want lower WC and higher EC in the media. These two variables are 100% controlled by shot size and timing. 3...

I have a problem getting my head around few things in all this. The saturation point and the drainage point = the moisture volume left in the medium after a cycle. IF one guy can get great results with a Perlite mix and the next guy the same with pure Coco, that kinda says to me that the...

Run a long blade knife around the inside of the pot, peel down the sides then run the knife across the bottom, it doesn't hurt anything as the root tips are fused anyway.

Your problem is too much moisture not enough air and using a heat may under the cloner will cook them and create pathogens, you want a consistent temp and atmosphere during cloning. A simple, guaranteed low maintenance way to clone . I use Rock wool cubes, pucks are the same deal, prepare them...

Yep anything stressful can cause it, I had a lot of problems with air exchange, I thought it was fine and had loads circulating around the room but it wasn't exchanging fast enough as one fan was working against another, caused Hermies, root issues and bugs , room was running on an edge where it...

Could somebody with some nutrient knowledge take a look and tell me if these would be ok for RDWC system rainwater . Cheers Grow https://www.yara.com.au/crop-nutrition/fertiliser-products/other-products/kristaflex-c-11-03-28/ Flower...

Im seeing the EC go down over night, Im thinking they use some for repair Im not sure how it works only that the EC is changing at night as well as at the end of their day , I check every 12 hours mine definitely doesn't sit constant during lights out cycle. cheers

EC in, Flow rate/volume gives EC out , if the flow is not enough the EC out will rise, if irrigations are not frequent enough it will also rise. Ive gone from Coco to RDWC and the first thing I learned is how they dont need high EC Im down to 350ppm mid flower and they happy over 400 they...

Here is the thread that got me looking at ppms in these systems, what was happening to this guy was happening to me and I can only put it down to the ppms being too high, what a difference 200ppm is showing on the plants going from 600-700 to 400 , I think the key to this is how much circulation...

In my diy rdwc they dont like over 500ppm at all, I have two side be side rooms and pushed one side to 650-700 ppm 4th week into flower and over 4 days the pistils were browning off and growth seemed to stall, Ive lowed the ppm to 400 and they are happier will have to see how they go now after...

Came across this today its loaded with useful information and tables, sorry if its been posted before. https://www.arguscontrols.com/resources/ArgusNutrientDosingHandbook.pdf

I have really cold winters and the air is dry, I have a tub with a finger size hole in each side about 100 ml up from the the bottom , I fill with water to just below the holes, then add 2 fish tank heaters and suction them to the bottom, once heaters are in place I place a smaller tray with a...

Its pretty simple and nothing special , I run to a level on a dip stick that I check how much they use every 24 hrs generally its about 70 ltrs for 8 plants and I top the tank back to that level and add nutrient to bring it back up to the right values daily, I start a grow at about 300 ppm and...

You probably did yourself a favor whats left will go nuts .

You most definitely can over water it, in the beginning you want to let it get fairly dry between waters it will develop more roots, if its saturated all the time the roots system will not flourish in the same way as wet dry cycle, as the plant grows you feed it more often pretty soon they are...

A few things Ive come to learn. Source water MUST be free from nasties, if you have any they can explode in a DWC system because its perfect conditions, I run a UV sterilizer and 2 filter system on my source water, this was a game changer for me. Plastic totes heat up quick you gotta have...

My source is rainwater, trouble started when I pumped across another 1/2 tank that was around the other side that had been sitting for awhile with the hole cover missing so frogs and stuff got, in I needed the water, it was bad water and trouble started from then on, no matter how much I...

It probably has a poorer root system than the others and is struggling to keep up with demand this starts a chain reaction beginning with lockout of nutrients, I would move it into a less light demand spot dont let it dry out and foliar feed it, a bit of time and it should bounce back...

I would say your source water is contaminated, once root rot gets in its hard to fix it because it explodes in dwc culture, people try a million things and give up when they had bad water to begin with , for me a complete game changer was prevention by running my source water through a 2 filter...

Get something with Abamectin in it, in Aus I use Vertimec 18g/ltr Abamectin at 1ml per ltr it will smash them, only need one proper spray and no bad effects on plant.