

🐟 Elevate your aquarium’s vibe with flawless pH balance!
API pH UP is a 4-ounce, phosphate-free liquid solution designed to safely raise and stabilize the pH level in freshwater aquariums. Ideal for maintaining optimal water conditions for a variety of tropical fish and plants, it neutralizes acidity gradually without promoting algae growth. Trusted by aquarists for over 50 years, this product ensures a healthy, vibrant aquatic environment with easy weekly adjustments.













| ASIN | B0002AQMVO |
| ASIN | B0002AQMVO |
| Allergen Information | Apple Free |
| Best Sellers Rank | #8,549 in Pet Supplies ( See Top 100 in Pet Supplies ) #59 in Aquarium Water Treatments |
| Brand Name | API |
| Customer Reviews | 4.6 4.6 out of 5 stars (3,625) |
| Date First Available | June 15, 2004 |
| Department | Unisex-Adult |
| Global Trade Identification Number | 00317163030318 |
| Is Discontinued By Manufacturer | No |
| Item Form | Liquid |
| Item Type Name | Aquarium pH adjuster |
| Item Weight | 0.3 Pounds |
| Item model number | 31C |
| Liquid Volume | 4 Fluid Ounces |
| Manufacturer | Mars Fishcare |
| Manufacturer | Mars Fishcare |
| Manufacturer Part Number | 31C |
| Manufacturer recommended age | 1 month and up |
| Model Number | 31C |
| Pet Type | Fish |
| Product Dimensions | 1.5 x 1.5 x 5.25 inches; 4.8 ounces |
| Target Species | Fish |
| UPC | 317163030318 |
| Unit Count | 118 Milliliters |
S**N
works great
works great raising my aquarium ph water in my area has very low ph put a little in my tank each weak to keep my ph stable
T**N
Great product great price
Work in my fish tanks Love this product
P**Z
Easy to use & effective
Impressive product as it immediately helped increase my ph . Added in limited dosage as pkg suggested . Too quick a ph change probably not good for the fish so use intelligently . My ph had been low and caused cloudy conditions , but this solved that and clarity returned with normal ph .
A**S
Works, but try to use only in emergencies
This works really well and quickly, it just doesn't last very long which is why I knocked a star off. I have a tank with a large piece of driftwood that tends to drop the pH and in addition to crushed coral, I occasionally have to use the pH UP to keep the levels balanced. It does a good job but only lasts a day before I have to do it again. It works well in emergencies or when I don't have time to change the water that day but need the levels balanced quickly to avoid harm to my fish until the next day when I can do a proper change, but for long-term use this is not the way to go. I would still recommend this to have (as well as pH DOWN) for emergency use, but bouncing the pH drastically is going to do more harm to your fish than letting them adjust to slightly higher or slightly lower levels.
T**H
Works great
Works great
D**1
Realmente esto no debe faltarte para compensar tu PH para tu acuario, siempre está en mi inventario
A**R
Works
Does the job
R**R
Worked very well, but no safety seal
I received the product very quickly. Product did not leak. I followed the directions and tested the water outside of my aquarium. And the API pH UP^ worked as advertised. My only issue was that after I removed the lid, there was no safety seal, so I was worrying if product might be watered down or tampered with in any way that might harm my fish. But my tests on the treated water showed nothing odd. I will watch to see how my fish and plants do. And report back.
H**.
Muy bueno y es como en automático que funciona, no ocupas mas productos para mantener a raya el ph del agua
M**R
Love the size that should get me longer than the small dripper we all get in the first water treatment kit.
M**N
Excellent and I recommend it
R**L
Good
B**N
Does the job. Always seek stable water parameters over fluctuation. Adjust water hardness for stability
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