Atlas Scientific pH Up and pH Down Control Test Kit - Hydroponics Solution - pH Calibration Solution for Water Test, Aquaponics, Raising & Lowering Plant Nutrients - pH Test Indicator - Set of 2(8

After reading the reviews I was skeptical but when it arrived and I treated the water that started with a ph of 9.3 and put a few drops in it dropped to 4.13. It worked great!!! Seals were good when opening looked brand new and worked as it should!

I’ll start by saying I’m using this on water that’s already been through a 4 stage reverse osmosis system. That being said I’m already pretty close to the desired parameters.I’m making my water in gallon jugs and using a small syringe to add the solution.I needed to lower my PH just one full number and all it took was less than 3 ml of solution to do it. This should last quite a long time if it continues to be this efficient.So far I’m pretty happy with it. The bottles are pretty small but as little as it takes to adjust your levels it doesn’t really matter.

quick and easy solutions, for a gallon at a time all it takes is a few drops.

i got this for my grow and i screwd up my plant, but had one of those cheap meter readers for the ph

Shipped fast, price is cool and remember you don’t use a lot it will go a long way with this bottle size