Can GH ph down POWDER(not the liquid form) be used in hydroponics.
If so, please list measurements when using gallons for the rez, which would be a 4 gallon rez for each.
Yep. Used it in dwc and now with coco. No problem mixing in with some stirring, long as you break up any chunks that form in the bag over time. Its so potent, a little container of it will last a very long time unless you're really going big.
The amount you will use kinda has to do with your starting water and the amount of nutes you add. Not going to be a universal answer there, just add a little and test until you hit your target number.
I'd start with like 1/8th of a tsp or the smallest amount you can measure though, as its really concentrated.
the water starts at the ph of 7-8, can you give me an estimate of GH ph down for that starting ph, per gallon, to bring it to the normal growing ph for sativa plant?
The liquid variety would use about 0.2 ml per gallon. Thats 2-3 drops. I'd suggest you get a baby doser, an eye dropper with 0.1 ml increments. Cost you a couple of bucks at any pharmacy.
how about mixing the powder into a liquid and using the liquid as the ph down? what ph would u want the liquid to be at.. and how much powder would u use per the amount of liquid?
say u wanna mix up a gallon of ph down.. from powder into liquid..
how much powder would u need to make a gallon of ph down in liquid.. ? n wat ph does ph down usually start at?
There is no set amount to use, once you have your PH mix made adjust as needed. you will need a PH meter for sure, once you get used to it its like clock work... just mix the same amount every time and it will be consistent.