FoxFarm Cultivation Nation pH UP for Plants’ Nutrient Solutions - Formulated with Potassium Hydroxide for Adjustment - Ideal for Soil & Hydroponics, Raises pH Levels of Nutrient Solution - 1 Quart

If you haven’t used Fox farm, you are not trading your plants right. Honestly, all of their products are fantastic so if you want to grow a wonderful garden, try just one or two of their products and see what a difference it will make. We love our fox farm products!

I have used my own pH up or down and or general hydroponics pH up or down for years. I think the GH pH up ions clash with the r.o. water ions used to mix the fox farm nutes. That the GH pH up clashes directly with the fox farm liquid nutes. Highly recommend using this and or another pH up product if your using fox farm liquid nutrients. Tiger bloom lowers your pH dramatically. Also your water must be reverse osmosis water and or filtered water to prevent the fox farm ion clashing with the water. End result = unhappy / slowly dying plant. Check your pH, ppms, ec, and water temps, always!! Do not let your ions clash, that's my best advice I can give if your using fox farm.

Way bigger than I expected and I use less than half the amount I did before super potent only thing I didn't know before I bought is the npk is 0-0-30 before I had to use 2 caps full now it's a little less than a cap it will take your ph to 12 real quick

Does exactly what it's supposed to do. I'd suggest adding a few drops at a time as to not lower the pH too much. Aside from that, the bottle had no leakage, very easy to use, works exactly as intended.

This is impressive stuff! You can use way less than some other brands. I only need 5 drops per gallon of acidic nutrient to bring it to the correct ph. And I have acidic water to begin with. I was using 3 whole dropperfuls of another brand! The photo shows two test tubes with my acidic well water and 4 drops of indicator each. The left one has one drop of Fox Farms pH up. The right has one drop of the first brand I bought. As you can see, more value for your money. So powerful they do suggest wearing protective gloves etc.! Highly recommend!

During flowering the plant will eat the ph up. So you’ll have to use this daily unless your solution have all the right amount of nutrients for your plants.

I do both hydro and soil and i have a lot of plants. and this thing is great for one thing. ph'ing at the start. it only take a small amount which is great. but if you have the tech. like soil PH meter and other things that monitor your plants health. This stuff will not only change ph back to the orignal PH it was. but it wwill blow past it. for example. Hydro. i use RO water of course and when PH down to 5.7 ph for hydro. 3 hours later it jumps to 6.4. and it always does this... With soil it even worst. i will ph to 6.3 for soil and it will jump to 7.6 and this is wwith non organic soil. so it just medium and nothing else.... so this should not happen... the worst part is the soil depth. each depth has a different ph..... the moment i swapped to a different brand. my problems went away..... this stuff will change the ph in the soil and also change depending on the depth of the soil. not sure why. but i have a soil ph meter in each plant at different depth.... dont buy this stuff... also there soil is not great either if you watch a video it compare in blind fold test.

Adjusted my PH a little at a time no harm to my plants