---
product_id: 393830404
title: "API Algaefix Marine, 16 OZ"
brand: "api"
price: "$97.14"
currency: USD
in_stock: true
reviews_count: 5
category: "Api"
url: https://www.desertcart.ec/products/393830404-api-algaefix-marine-16-oz
store_origin: EC
region: Ecuador
---

# EPA-registered safe formula Protects fish, corals & invertebrates Copper-free, no water discoloration API Algaefix Marine, 16 OZ

**Brand:** api
**Price:** $97.14
**Availability:** ✅ In Stock

## Summary

> 🌿 Clear water, happy reefs — algae control that’s reef-safe and worry-free!

## Quick Answers

- **What is this?** API Algaefix Marine, 16 OZ by api
- **How much does it cost?** $97.14 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/393830404-api-algaefix-marine-16-oz)

## 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

- • **Invisible Treatment:** Leaves no discoloration or foaming—just pristine water clarity every time.
- • **Trusted by Thousands:** Backed by 2,000+ five-star reviews, join the community mastering marine aquarium care.
- • **No Copper, No Worries:** Copper-free formula ensures zero toxicity and no harmful side effects on aquatic pets.
- • **Eco-Safe Algae Control:** EPA-registered and reef-friendly, so your marine life thrives without compromise.
- • **Multi-Algae Targeting Power:** Effectively eliminates green, red slime, and brown algae for crystal-clear saltwater tanks.

## Overview

API Algaefix Marine is a 16 oz liquid algae control treatment designed specifically for saltwater aquariums. It safely targets multiple algae types including green, red slime, and brown algae without harming fish, corals, or invertebrates. EPA-registered and copper-free, it maintains water clarity without discoloration or foaming, making it a trusted choice for marine aquarium enthusiasts.

## Description

API Algaefix Marine, 16 OZ : desertcart.ae: Patio, Lawn & Garden

Review: Works great
Review: Five Stars

## Features

- API MARINE ALGAEFIX algae control is registered with the EPA, and will not harm fish, corals, or other invertebrates.
- API MARINE ALGAEFIX algae control effectively controls these types of saltwater algae: Green algae (Cladophora), “Red Slime” (Oscillatoria & Spirulina major), “Brown Algae” (Cyclotella), in saltwater aquariums containing live corals, invertebrates, and fish.
- API MARINE ALGAEFIX algae control does not discolor water or cause foaming and does not contain copper.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0017JHBGY |
| Allergen Information | BPA-Free |
| Brand | API |
| Brand Name | API |
| Customer Reviews | 4.4 out of 5 stars 2,068 Reviews |
| Global Trade Identification Number | 00317163043875 |
| Item Form | Liquid |
| Item Type Name | API Algaefix Marine, 16 OZ |
| Item Weight | 0.2 Pounds |
| Item form | Liquid |
| Item weight | 0.2 Pounds |
| Liquid Volume | 16 Fluid Ounces |
| Liquid volume | 16 Fluid Ounces |
| Manufacturer | API |
| Target Species | Fish |
| UPC | 317163043875 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** API
- **Liquid volume:** 16 Fluid Ounces
- **Item weight:** 91 g
- **Item form:** Liquid
- **Manufacturer:** API

## Images

![API Algaefix Marine, 16 OZ - Image 1](https://m.media-amazon.com/images/I/51GliYvoWaL.jpg)

## Questions & Answers

**Q: Will this work on brown algae**
A: API Algaefix is the top selling algaecide in the aquarium industry.  API Algaefix Marine will treat brown algae as well as string algae and many others types of algae as well.

**Q: I accidentally ordered this instead of the Algaefix for ponds that I normally use. The ingredients look to be the same are they in fact the same?**
A: Yes, all Algaefix ( Pond, Marine and Aquarium) are all the same product.  Dose as normal.

**Q: Can I use this in my saltwater reef aquarium**
A: Yes I have freshwater aqauriums and planted tanks

**Q: I used algae fix in only fish marine aquariums and worked good but wit the time a black algae got. Why that happen and what can I do?**
A: Keep treating with algaefix ( although chemicals can be a bit stressful on the fish, therefore the duration must be limited). More frequent water changes.  Usually one algae replaces another.  It’s a very hard battle to get ahead of.  Check your filter to ensure you’re getting the proper turn over rate.  Changing the food, and lowering the amount entering the tank. Also, reduce the amount of light (direct light and from light source) in addition to the amount of hours the lights are on.  Use a sterilizer capable of level 1 sterilization, 24/7.   All of these things combined should reduce the amount of algae.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works great
*by M***N on 14 January 2025*



### ⭐⭐⭐⭐⭐ Five Stars
*by S***H on 4 December 2015*



### ⭐⭐⭐⭐⭐ This stuff is a life (tank) saver!
*by G***M on 22 February 2024*



## Frequently Bought Together

- API MARINE ALGAEFIX Algae Control 16-Ounce Bottle
- API ALGAEFIX Algae Control 16-Ounce Bottle
- API TAP WATER CONDITIONER Aquarium Water Conditioner 16-Ounce Bottle

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**Shop now:** [https://www.desertcart.ec/products/393830404-api-algaefix-marine-16-oz](https://www.desertcart.ec/products/393830404-api-algaefix-marine-16-oz)

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*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-02-21*