ADVANCED pH Up 1 Litre

This is the best Ph adjustment in my opinion.0.5 ml adjusts a 40 gallon RDWC one decimal point. Be careful its strong stuff.Most ph problems can be solved by monitoring the Ppm of the plants.If your ph is high and ppm are low add more nutrients.If your ph is low and ppm are high, you have to much ppm for your plants to absorb.These are nice for when you have a P (down) or K(up) deficiency.This bottle will last 2 years.But thats not the purpose of this review.In a nut shell, its Only for advanced growers. Happy Growing.

Got a different bottle then the ad but same stuff by advancedVery potent so you don't have to use much at all to get the level required.

8 drops to 6 gallons, neutralized

Easy to use