How long after using do you re- test to see how much the pH went up?

We would recommend waiting about a half-hour in order for the water to fully circulate so that you get an accurate reading. If you have a very large system or very little flow, you may want to wait 1-2 hours. You are safe to re-dose at that point as long as you have not changed more than 0.2 in pH, which is the maximum we recommend changing within a 24 hour period to reduce fish stress. If you have any other questions, feel free to reach out to us at 1-800-847-0659 or APITechServices@effem.com

Can this be used in a tank with invertebrates?

Yes. Many years ago this was labeled for ponds

This should be fine for a Brackish tank?

You can use it however the KH of a brackish tank might prevent you from lowering the ph. Please contact API at 1-800-847-0659 and we can help.

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Description

🐟 Elevate your aquarium’s vibe—because your fish deserve the perfect pH balance!

TRUSTED LEGACY - Backed by 50+ years of API innovation, ensuring reliable and research-driven aquarium care.
FISH PLANT SAFE - Gentle, slow neutralization protects aquatic life and promotes a thriving ecosystem.
ALGAE FREE FORMULA - Phosphate-free solution prevents unwanted algae growth, keeping your tank crystal clear.
PRECISION P H CONTROL - Easily raise freshwater aquarium pH to ideal levels with measured 16-ounce dosing.
WEEKLY P H MAINTENANCE - Encourages routine water testing and adjustment for a stable, healthy environment.

API pH UP Freshwater Aquarium Water pH Raising Solution is a 16-ounce, phosphate-free liquid designed to safely and effectively raise the pH level in freshwater aquariums. It prevents algae growth, protects fish and plants, and supports a stable aquatic environment. Ideal for weekly pH adjustments, this trusted formula from API ensures your aquarium thrives with minimal effort.

Specifications

ASIN	B0002ASGC2
ASIN	B0002ASGC2
Allergen Information	Apple Free
Best Sellers Rank	#10,572 in Pet Supplies ( See Top 100 in Pet Supplies ) #72 in Aquarium Water Treatments
Brand Name	API
Customer Reviews	4.6 4.6 out of 5 stars (3,678)
Date First Available	June 15, 2004
Department	Unisex-Adult
Global Trade Identification Number	00017163020318
Item Form	Liquid
Item Type Name	Aquarium pH adjuster
Item Weight	1.2 pounds
Item model number	31B
Liquid Volume	16 fluid ounces
Manufacturer	Mars Fishcare
Manufacturer	Mars Fishcare
Manufacturer Part Number	31B
Model Number	31B
Number of Items	1
Number of Packs	1
Pet Type	Fish
Product Dimensions	2.5 x 2.5 x 8.75 inches; 1.2 pounds
Target Species	Fish
UPC	017163020318
Unit Count	1 Count

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47076CFA

Duties & taxes included

In stock

Sold byAmazon TogoDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Togo.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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