"pH- Monster Buds is a concentrated nitric acid solution designed to bring the pH of your nutrient mix down quickly and keep it there. Getting pH right is one of the most important parts of growing well. If your water runs too alkaline, your plants can't absorb nutrients properly no matter how good your feed is. This corrects that.
It works across soil, coco, and hydroponics, so it fits whatever setup you're running. Add 2-4ml per 10 litres of water depending on your starting pH, stir, re-check, and adjust until you hit the right level. Aim for 5.5-6.5 in hydro and coco, or 6.0-6.5 in soil.
Because it's nitric acid based, always wear gloves and eye protection when handling it. Avoid skin and eye contact, and keep it away from children. Store in a cool, dry place out of direct sunlight, lid on tight. It's a straightforward tool, but one that makes a real difference to how well your plants feed."