--- product_id: 21327390 title: "81103 Fritz pH Lower for Fresh and Salt Water Aquariums, 16-Ounce" brand: "fritz aquatics" price: "$58.96" currency: USD in_stock: true reviews_count: 11 category: "Fritz Aquatics" url: https://www.desertcart.us/products/21327390-81103-fritz-ph-lower-for-fresh-and-salt-water-aquariums store_origin: US region: United States of America --- # for all aquatic life 16 oz capacity pH reduction 81103 Fritz pH Lower for Fresh and Salt Water Aquariums, 16-Ounce **Brand:** fritz aquatics **Price:** $58.96 **Availability:** ✅ In Stock ## Summary > 🌊 Dive into a healthier aquarium experience! ## Quick Answers - **What is this?** 81103 Fritz pH Lower for Fresh and Salt Water Aquariums, 16-Ounce by fritz aquatics - **How much does it cost?** $58.96 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/21327390-81103-fritz-ph-lower-for-fresh-and-salt-water-aquariums) ## Best For - fritz aquatics enthusiasts ## Why This Product - Trusted fritz aquatics brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Versatile Use:** Perfect for both fresh and saltwater aquariums. - • **Simple Application:** Effortlessly adjust acidity with a user-friendly formula. - • **All Life Stages Welcome:** Safe for every aquatic inhabitant, from fry to adults. - • **Transform Your Aquarium:** Easily lower pH levels for a thriving aquatic environment. - • **Boost Biological Efficiency:** Correct pH enhances filter performance and fish health. ## Overview FritzAquatics 81103 Fritz pH Lower is a 16-ounce solution designed to effectively lower pH levels in both fresh and saltwater aquariums, enhancing biological filter efficiency and ensuring a safe environment for aquatic life at all stages. ## Description The pH of an aquarium is a very important, yet commonly overlooked aquarium water parameter. A correct, stable pH will help ensure a healthy aquarium environment. The pH of an aquarium can fluctuate due to biological or chemical activity within the aquarium. With Fritz pH Lower, the pH may be decreased to a desired level for aquarium inhabitants. Adjusting the pH to the proper level has an important influence on fish health and disease resistance. Directions: To decrease pH, add 5 ml (1 cap/1 tsp) per 20 gallons of water. Review: Works great - If high pH is an issue, this product works great. Review: Did the trick for my Hot Tub. - I've been trying to lower the PH without lowering the alkalinity, none of the Hot Tub chemicals would do it but this did the trick, now it balances perfectly. ## Features - Easily Lower the pH Levels in Aquariums - Increases Acidity - Reduces Alkalinity - Correct pH Improves Biological Filter Efficiency - For Use in Fresh Water and Salt Water Aquariums - Age range description: All Life Stages ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00OTH4R3Q | | ASIN | B00OTH4R3Q | | Allergen Information | Chicken Meat Free | | Best Sellers Rank | #111,951 in Pet Supplies ( See Top 100 in Pet Supplies ) #1,019 in Aquarium Water Treatments | | Brand Name | Fritz Aquatics | | Customer Reviews | 4.4 4.4 out of 5 stars (517) | | Date First Available | November 1, 2014 | | Global Trade Identification Number | 00080531811030 | | Included Components | Fritz Aquatics PH Lower Treats, 16-Ounce | | Is Discontinued By Manufacturer | No | | Item Form | Liquid | | Item Type Name | Fritz Aquatics PH Lower Treats, 16-Ounce | | Item Weight | 16 ounces | | Item model number | 81103 | | Liquid Volume | 16 Fluid Ounces | | Manufacturer | Fritz Aquatics | | Manufacturer | Fritz Aquatics | | Manufacturer Part Number | 81103 | | Model Number | 81103 | | Product Dimensions | 8.68 x 2.56 x 2.56 inches; 1 Pounds | | Target Species | Fish | | UPC | 080531811030 | | Unit Count | 1 Piece | | Warranty Description | See Manufacturers Website | ## Product Details - **Brand:** Fritz Aquatics - **Item Form:** Liquid - **Item Weight:** 16 ounces - **Liquid Volume:** 16 Fluid Ounces - **Unit Count:** 1 Piece ## Images ![81103 Fritz pH Lower for Fresh and Salt Water Aquariums, 16-Ounce - Image 1](https://m.media-amazon.com/images/I/71EKWulJ03L.jpg) ![81103 Fritz pH Lower for Fresh and Salt Water Aquariums, 16-Ounce - Image 2](https://m.media-amazon.com/images/I/9123l+GISFL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works great *by J***N on March 26, 2025* If high pH is an issue, this product works great. ### ⭐⭐⭐⭐⭐ Did the trick for my Hot Tub. *by P***T on July 26, 2022* I've been trying to lower the PH without lowering the alkalinity, none of the Hot Tub chemicals would do it but this did the trick, now it balances perfectly. ### ⭐⭐⭐⭐⭐ Great product! *by C***1 on September 29, 2022* Works perfectly in my tanks! Great product! ## Frequently Bought Together - Fritz Aquatics PH Lower Treats, 16-Ounce - Seachem Stability Tank Stabilization System, 500 ml - Seachem Purigen for Freshwater, 100 ml --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/21327390-81103-fritz-ph-lower-for-fresh-and-salt-water-aquariums](https://www.desertcart.us/products/21327390-81103-fritz-ph-lower-for-fresh-and-salt-water-aquariums) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-05-20*