---
product_id: 6693085
title: "API PONDCARE MICROBIAL ALGAE CLEAN Biological Inhibitor of Green Water, Alternative approach to algae control, 16-Ounce Bottle"
brand: "api"
price: "$73"
currency: NZD
in_stock: true
reviews_count: 8
category: "Api"
url: https://www.desertcart.nz/products/6693085-api-pondcare-microbial-algae-clean-biological-inhibitor-of-green-water
store_origin: NZ
region: New Zealand
---

# Safe for fish & live plants 16 fl oz concentrated liquid formula EPA-registered bacterial algaecide API PONDCARE MICROBIAL ALGAE CLEAN Biological Inhibitor of Green Water, Alternative approach to algae control, 16-Ounce Bottle

**Brand:** api
**Price:** $73
**Availability:** ✅ In Stock

## Summary

> 🌿 Clear Water, Clear Mind — Elevate Your Pond Game with Microbial Magic!

## Quick Answers

- **What is this?** API PONDCARE MICROBIAL ALGAE CLEAN Biological Inhibitor of Green Water, Alternative approach to algae control, 16-Ounce Bottle by api
- **How much does it cost?** $73 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/6693085-api-pondcare-microbial-algae-clean-biological-inhibitor-of-green-water)

## 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

- • **Easy Maintenance Routine:** Simple twice-weekly dosing for two weeks, then weekly to keep your pond’s green water algae-free and vibrant.
- • **Dual-Action Clarity Boost:** Eliminates organic sludge and noxious odors while maintaining crystal-clear pond water for a pristine aesthetic.
- • **Fish & Plant Friendly Formula:** Safe for koi, goldfish, tadpoles, and live plants—supporting a balanced, oxygen-rich aquatic ecosystem.
- • **EPA-Registered Microbial Power:** The first bacterial algaecide officially approved to biologically inhibit green water algae without harming aquatic life.
- • **Optimized for Ornamental Ponds:** Specifically designed for synthetically-lined ponds and water gardens, ensuring no harmful runoff or environmental impact.

## Overview

API PONDCARE MICROBIAL ALGAE CLEAN is a 16-ounce EPA-registered bacterial algaecide that biologically inhibits green water algae in ornamental ponds and water gardens. It safely eliminates organic sludge and odors while supporting fish and plant health, making pond maintenance effortless and eco-friendly.

## Description

API PONDCARE MICROBIAL ALGAE CLEAN Biological Inhibitor of Green Water is the first bacterial algaecide registered with the EPA (Environmental Protection Agency) for ponds. It controls green water algae, also known as chlorella, in ponds and water gardens containing live plants and fish. PONDCARE MICROBIAL ALGAE CLEAN uses a beneficial bacteria to eliminate organic sludge, debris, and noxious pond odors. PONDCARE MICROBIAL ALGAE CLEAN helps establish and maintain the biological pond filter and improves conditions for fish to receive more oxygen. This algae control solution is exclusively for use in synthetically-lined ornamental ponds and water gardens, where all water is contained without any outflow. Will not harm plants or fish.With API POND products, it’s easy to keep a beautiful pond. For almost 60 years API has developed premium solutions with proven and effective results for your family and ours. API offers a range of testing kits, water conditioners, and nutritionally superior food, because we’re dedicated to making a better underwater world. They work to provide a safe, hospitable environment for fish such as koi, catfish, perch, goldfish and more. At API, we understand the rewards and relaxation of fishkeeping because we have a passion for fish too.

Review: worked well for what I needed - I used this to clear the water tank on a WaterRower rowing machine. I misread the instructions for the machine (did not add the requisite water purification tablet in a timely fashion). Algae had grown in the tank but after adding 1/4 cup of the APE PondCare the algae disappeared in a few days. I did change the water before treatment. Now I add the recommended water purification tablets and the water is crystal clear once more. This stuff works.
Review: Does work well for chlorella - This is not an algae killer but a special bacteria that feed on the type of algae that float in the water making water look green and opaque. I tried it in my 16,500 gallon pond for the last month, and as long as you keep adding it, the pea soup stays away. It has no effect on the algae like string algae or the stuff that sticks to the liner of the pond. Used with koi, goldfish and tadpoles and there is no problem. Don't forget to turn off your UV or it will kill the bacteria and prevent it from working.

## Features

- Contains one (1) PONDCARE MICROBIAL ALGAE CLEAN Green Water Biological Inhibitor 16-Ounce Bottle
- Controls green water algae in water gardens containing live plants and fish
- Eliminates troublesome organic sludge and debris and reduces noxious pond odors
- Biologically inhibits green water to keep pond water clean and clear in ornamental ponds and water gardens
- Use twice a week for two weeks then once a week to maintain green water algae control

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | API |
| Customer Reviews | 4.2 out of 5 stars 257 Reviews |
| Item Form | Liquid |
| Item Weight | 1.25 Pounds |
| Liquid Volume | 16 Fluid Ounces |
| Manufacturer | Mars Fishcare |
| UPC | 317163022696 |

## Product Details

- **Brand:** API
- **Liquid Volume:** 16 Fluid Ounces
- **Item Weight:** 1.25 Pounds
- **Item Form:** Liquid
- **Manufacturer:** Mars Fishcare

## Images

![API PONDCARE MICROBIAL ALGAE CLEAN Biological Inhibitor of Green Water, Alternative approach to algae control, 16-Ounce Bottle - Image 1](https://m.media-amazon.com/images/I/71x1y35GS7L.jpg)

## Questions & Answers

**Q: I have a small outdoor fountain that I would like to keep algae free, products need to be dog & cat safe. any ideas?**
A: I can only say that this is non-toxic to fish and frogs.  I don't know whether, if a dog or cat were to drink water that had this algae control in it, it would make the dog or cat sick or not.  I would suggest you call the producer of the product.  I use it all the time in my pond, and on one occasion I did call the company that produces it.  Surely, they could tell you if it's safe to use around dogs and cats.

**Q: Is it safe for bees, when used in an outdoor fountain?!**
A: I really don’t know. I notice that bees take water from a chlorinated pools and muddy puddles. Didn’t hurt my fish.

**Q: Can I use this in my fish tank**
A: you could, but I wouldn't unless your tank is at least 150 gallons. Controlling the proper mix would be touchy in smaller amounts. There are better products for aquarium use to accomplish the same thing.

**Q: Can i use this in my 40 gallon tank? It does have the little moss balls**
A: Yes, but reduce the dose to treat 40 gallons

## Customer Reviews

### ⭐⭐⭐⭐⭐ worked well for what I needed
*by F***M on June 29, 2024*

I used this to clear the water tank on a WaterRower rowing machine. I misread the instructions for the machine (did not add the requisite water purification tablet in a timely fashion). Algae had grown in the tank but after adding 1/4 cup of the APE PondCare the algae disappeared in a few days. I did change the water before treatment. Now I add the recommended water purification tablets and the water is crystal clear once more. This stuff works.

### ⭐⭐⭐⭐⭐ Does work well for chlorella
*by G***N on June 19, 2014*

This is not an algae killer but a special bacteria that feed on the type of algae that float in the water making water look green and opaque. I tried it in my 16,500 gallon pond for the last month, and as long as you keep adding it, the pea soup stays away. It has no effect on the algae like string algae or the stuff that sticks to the liner of the pond. Used with koi, goldfish and tadpoles and there is no problem. Don't forget to turn off your UV or it will kill the bacteria and prevent it from working.

### ⭐⭐⭐⭐ Good product
*by S***. on June 17, 2019*

Green water was a problem with my Koi pond. Microbial Algae Clean helped clear up the water. Use with Simply Clear made the pond perfect

## Frequently Bought Together

- API PONDCARE MICROBIAL ALGAE CLEAN Biological Inhibitor of Green Water, Alternative approach to algae control, 16-Ounce Bottle
- Rowing Machine Water Purification Tablets | Universal Water Rowing Machine Tank Cleaner | Safe, Eco-Friendly Formula | 4 Tablets
- Water & Fuel Transfer Pump Siphon - Large Squeezing Gas Siphon for Lawn Mowers & Manual Pumping Petrol, Water Syphon, Alcohol and more! - Siphon Pump for Gasoline (By Luigi's)

---

## 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.nz/products/6693085-api-pondcare-microbial-algae-clean-biological-inhibitor-of-green-water](https://www.desertcart.nz/products/6693085-api-pondcare-microbial-algae-clean-biological-inhibitor-of-green-water)

---

*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-02-24*