






🌿 Elevate your grow game with pinpoint pH control!
The Bloom City Professional pH Up + Down Control Kit offers 16 oz of liquid solutions designed for precise pH adjustment in hydroponic and soil growing environments. Engineered for optimal nutrient uptake, this kit delivers fast, stable pH correction with easy dosing and reliable, leak-proof bottles. Trusted by nearly 3,000 growers and made in the USA, it’s the essential tool for maximizing plant health and yield.



















| ASIN | B08JHDVBY2 |
| Best Sellers Rank | #11,838 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #451 in Garden Fertilizers |
| Brand Name | Bloom City |
| Coverage | Medium |
| Customer Reviews | 4.6 4.6 out of 5 stars (2,993) |
| Item Form | Liquid |
| Item Weight | 16 Ounces |
| Liquid Volume | 0.5 Pints |
| Manufacturer | Bloom City |
| Mixing Ratio | 1-2ml/gallon |
| Model Number | BC-PH-KIT-001 |
| Specific Uses For Product | Hydroponics |
| Target Species | plants |
| UPC | 841401125721 |
| Unit Count | 16.0 Ounce |
J**D
Easy, Precise pH Control for Healthier Plants!
This Bloom City pH Up + Down kit is a must-have for anyone serious about maximizing nutrient uptake in their hydroponic or soil-based grow. The bottles are clearly labeled, easy to pour, and work fast—just a few drops go a long way. What I love most is the precision and consistency. Whether I’m adjusting water for veggies, herbs, or houseplants, this kit helps me dial in the perfect pH range every time. No residue, no weird smell, and it mixes well. You get both solutions in one affordable pack, and the 16 oz total lasts longer than I expected. Definitely recommend for beginner and experienced growers alike!
H**H
Works very well
Works SUPER well. The up is definitely more strong then down so be careful. Besides that it’s very good. No leakage at all, the size is very good, it’ll last a while. Super easy to use. You should wait about 5 minutes after change the ph then test. Ph stabilizes well with this kit and very fast. It does come in this little bag which is nice.
S**Y
A lifetime supply?
This stuff works great to keep my PH where my plants like it. My only issue is that it takes such a tiny amount of the product (we're talking just a drop or two in a two gallon bucket of water for me) that I inadvertently put in too much of one, then have to compensate with some of the other. This isn't a complaint, these two bottles will last me a lifetime at this rate & I'm ok with that. Sometimes I need such a small amount that I just need to put my knife in the bottle to get it slightly wet with the PH Up or Down, and then stir the water in my 2 gallon bucket with the knife to correct the PH. Great stuff, I would just recommend buying an eye dropper to use with it to control the amount and for the love of god, if this is your first time using it start off with just a drop or two per 2 gallon bucket. You're welcome. :)
B**A
accurate
Exactly as promised.
M**L
Does well!
Been using last couple grows. Does well. Definitely keeps the ph balanced Lasts pretty long. Small bottle. No leaks.
B**R
5 star
Must have
L**N
Perfect for Hydroponic Farming
As a hydroponic farmer, I have been using these products for several years now. I am satisfied and always get the same kind of results with them.
E**O
Amazing!
Honestly, this PH up and Down have saved me on many occasions when my PH is a little off. This is a fantastic product and will buy again in the future!
Trustpilot
1 week ago
3 days ago