🌱 Optimized Hydroponic Calibration Solution for Gardening Review

pH meters are cool. They make testing your solution easier and save time. The only problem is that they are generally quite expensive and prone to drifting readings and general failures no matter how well you maintain and calibrate them. It's gotten to the point where the only real problems I have with pH and therefore my plants, is that the pH meter decides it's no longer telling the truth and I see errors because of that. I'm tired of playing games and spending money on them just to check the

The product is great and works as it should. My only problem is user error, not company error. I forgot to order the test tube kit. Luckily I have test bottles for my aquariums, although their dimensions are slightly different from those shown in the test kit photos. If anyone knows offhand what size the test tubes are I would be very grateful for the information, for the accuracy. I would have just ordered a kit but it took weeks to ship (no fault of the post office, we just live in times like

Just finished a batch and opened a new bottle. I tested the same three liquids (hydroponic nutrient solution) and got different results between two batches of General Hydroponics GH1516. The tests took place in the same environment with a difference of several minutes. In the figure, the three liquids are shown in three columns, with the top row representing the "old batch" and the bottom row representing the "new batch" GH1516. In the left and middle sample, the value of the old batch is…