---
product_id: 621570263
title: "API ALGAEFIX Algae Control 1.25-Ounce Bottle, ALGAEFIX 1.25 OZ"
brand: "api"
price: "$14.01"
currency: USD
in_stock: true
reviews_count: 5
category: "Api"
url: https://www.desertcart.us/products/621570263-api-algaefix-algae-control-1-25-ounce-bottle-algaefix-1
store_origin: US
region: United States of America
---

# 1.25 oz precision dosing Fast-acting algae control Made in America quality API ALGAEFIX Algae Control 1.25-Ounce Bottle, ALGAEFIX 1.25 OZ

**Brand:** api
**Price:** $14.01
**Availability:** ✅ In Stock

## Summary

> 💧 Clear water, happy fish — algae doesn’t stand a chance!

## Quick Answers

- **What is this?** API ALGAEFIX Algae Control 1.25-Ounce Bottle, ALGAEFIX 1.25 OZ by api
- **How much does it cost?** $14.01 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/621570263-api-algaefix-algae-control-1-25-ounce-bottle-algaefix-1)

## Best For

- api enthusiasts

## Why This Product

- Trusted api brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Trusted American Innovation:** Backed by 50+ years of API’s research-driven aquarium care
- • **Low Maintenance, High Reward:** Weekly dosing keeps algae at bay, reducing tank cleaning time
- • **Safe for Your Aquatic Family:** Non-toxic formula protects fish & plants when used as directed
- • **Precision Dosing for Maximum Impact:** 1 ml per 10 gallons ensures targeted, effective treatment
- • **Crystal Clear Aquariums, Effortlessly:** Controls green water, string & hair algae for pristine tanks

## Overview

API ALGAEFIX Algae Control is a fast-acting, 1.25-ounce liquid treatment designed to eliminate green water, string, and hair algae in freshwater aquariums. Safe for fish and plants when dosed correctly, it requires only 1 ml per 10 gallons every three days until algae is controlled, then weekly maintenance doses. Proudly made in America, this product reduces aquarium maintenance and promotes a crystal-clear aquatic environment.

## Description

Treat and control algae growth and reduce your freshwater aquarium maintenance with API ALGAEFIX Algae Control. This revolutionary product is specially developed to control many types of algae, including "green water" algal blooms and string or hair algae, and it will not harm fish or plants when used as directed. Weekly doses of API ALGAEFIX Algae Control will control algae growth and reduce aquarium maintenance. Do not overdose. To treat algae, add 1 ml per 10 gallons of water and repeat every three days until algae is controlled. Siphon or scrape any dead algae from aquarium. Use this aquarium treatment weekly to control algae growth and reduce aquarium maintenance. API ALGAEFIX Algae Control is not for use with freshwater crustaceans including shrimp, crabs and lobsters. With API Aquarium products, it’s easy to keep a beautiful saltwater, freshwater or reef aquarium. For over 50 years, API has been creating innovative, research-driven solutions that make it easier to care for your fish and aquarium. API Aquarium Treatment Supplies are designed to work in conjunction with each other to provide best results to control algae, promote healthy bacterial growth and help control and cure fish diseases and conditions such as ich and fin rot. They work to provide a safe, hospitable environment for fish such as tropical community fish, cichlids, goldfish and more. With API, you can spend more time admiring your fish, and less time scrubbing your tank. Make sure to use all products as directed in order to ensure the best results.

Review: Its waste of money, dont buy with positive rev, go with hydrogen liquid instead which is much cheaper
Review: Worked a treat for me, I see a few negative comments but all I can say is make sure you follow the dosage. Remember if you have a 100l tank, you don't dose for a 100l tank. Remember to take into account your gravel, ornaments etc as that will reduce the capacity of water it holds. Therefore to be safe always slight under does, yes might take a little longer to get the effects you want, but it's far safer for the fish. It is very effective and provides outstanding water clarity. Therefore for me it's great value for money.

## Features

- Contains one (1) API ALGAEFIX Algae Control 1.25-Ounce Bottle
- Controls algae growth and keeps aquarium glass, ornaments and plants clean
- Fast-acting and effective on "green water" algae blooms, string or hair algae
- Will not harm fish and plants when used as directed
- Dose every three days until algae is under control then dose weekly
- Material type: cotton
- Special features: Made In America1

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00025YVHQ |
| Allergen Information | Apple Free |
| Batteries Included | No |
| Best Sellers Rank | #4,389 in Pet Supplies ( See Top 100 in Pet Supplies ) #26 in Fish Medication & Health Supplies |
| Color | Blues & Purples |
| Customer Reviews | 4.3 4.3 out of 5 stars (814) |
| Date First Available | 27 April 2021 |
| Item Form | Liquid |
| Item Weight | 90.7 g |
| Item model number | 87B |
| Number of Items | 1 |
| Product Dimensions | 5.08 x 5.08 x 15.24 cm; 90.72 g |
| Quantity | 1 |
| Size | 1.25-Ounce |
| Special Features | Made In America1 |
| Storage Information | Keep in dry area, Tightly close container after each use |
| batteries required | No |

## Product Details

- **Brand:** API
- **Item form:** Liquid
- **Item weight:** 0.2 Pounds
- **Liquid volume:** 1.25 Fluid Ounces
- **Manufacturer:** Mars Fishcare

## Images

![API ALGAEFIX Algae Control 1.25-Ounce Bottle, ALGAEFIX 1.25 OZ - Image 1](https://m.media-amazon.com/images/I/61yOmZ2k3sL.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Questions & Answers

**Q: can this be used in birdbaths to help with algae?**
A: It would probably hurt the birds skin or even kill them if the drank it. So, no, I wouldn't use it for that. I think algae in a bird bath is inevitable since they get so much sunlight. A good scrub once a week would be your best bet.

**Q: Will algaefix harm the silicone decorations in my tank? do i have to remove these decorations in order to use this product correctly?**
A: API Algaefix can be used with the silicone decorations within the aquarium without adverse effects.

**Q: Any one know if this will kill your bio filters?**
A: not sure on the bio filters, but it killed half our fish.

**Q: I have 6 gallon aqueon Ascent frameless tank. How many drops do you put in tank to control algae problem.**
A: Don't do it.  It killed every fish in my tank, I had to change out EVERYTHING and start from scratch.  New substrate, airstone, any decoration, all plants, I mean EVERYTHING.  This is cyanide

## Customer Reviews

### ⭐ Review
*by A***N on 26 December 2024*

Its waste of money, dont buy with positive rev, go with hydrogen liquid instead which is much cheaper

### ⭐⭐⭐⭐⭐ Review
*by C***. on 15 November 2025*

Worked a treat for me, I see a few negative comments but all I can say is make sure you follow the dosage. Remember if you have a 100l tank, you don't dose for a 100l tank. Remember to take into account your gravel, ornaments etc as that will reduce the capacity of water it holds. Therefore to be safe always slight under does, yes might take a little longer to get the effects you want, but it's far safer for the fish. It is very effective and provides outstanding water clarity. Therefore for me it's great value for money.

### ⭐⭐⭐⭐ Review
*by C***N on 10 February 2025*

Has been very helpful for my small 3 gallon fish tank maintenance. Helps prevent the algae I regularly get and decreases how much manual maintenance I have to perform.

## Frequently Bought Together

- API ALGAEFIX Algae Control 1.25-Ounce Bottle
- Tetra Water Cleaner Gravel Siphon for Aquariums, Easily Clean Freshwater Aquariums
- SLSON Aquarium Algae Scraper Double Sided Sponge Brush Cleaner Long Handle Fish Tank Scrubber for Glass Aquariums and Home Kitchen,15.4 inches

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-12*