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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Ph Up Liquid 4oz

Product ID: 767743782

Details

Brand
API
Item Form
リキッド
Item Weight
136 g
Liquid Volume
4 Fluid Ounces
Manufacturer
Aquarium

💧Clear, non-clouding formula

📏Precise 4oz dosing

🚫No phosphates or nitrates

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Description

💧 Raise the bar on your aquarium’s pH—clarity and balance in every drop!

ALGAE FREE ASSURANCE - Phosphate and nitrate-free to prevent unwanted algae blooms and keep your tank pristine.
COMPACT YET POWERFUL - Small bottle, big impact—perfect for professional and hobbyist aquarists alike.
TRUSTED BY THOUSANDS - 4.5-star rating from over 2,600 aquarium enthusiasts—join the community that cares.
CRYSTAL CLEAR WATER ALWAYS - Formulated to raise alkalinity without clouding or discoloring your aquatic environment.
ELEVATE YOUR AQUARIUMS P H WITH PRECISION - 4oz bottle ensures long-lasting, accurate pH adjustment without guesswork.

API PH Up Liquid 4oz is a phosphate- and nitrate-free aquarium pH adjuster designed to safely raise alkalinity without clouding or coloring water. Trusted by thousands with a 4.5-star rating, this compact 4oz bottle delivers precise, long-lasting pH control for a healthier aquatic environment.

Specifications

ASIN	B0002AQMVO
Brand Name	API
Customer Reviews	4.5 4.5 out of 5 stars (2,731)
Global Trade Identification Number	00317163030318
Item Form	リキッド
Item Weight	136 g
Liquid Volume	4 Fluid Ounces
Manufacturer	Aquarium Pharmaceuticals
Manufacturer Part Number	31C
Model Number	31C
Target Species	Fish
UPC	317163030318

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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TrustScore 4.5 | 7,300+ reviews

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6831 som

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In stock

Sold byAmazon KyrgyzstanDelivered 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 Kyrgyzstan.

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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