---
product_id: 66837404
title: "Algae D-Solv Pond Algae Control, Fast-Acting EPA Registered Algaecide, Use in Fountains & Outdoor Ponds Containing Koi & Other Fish, Treats 5,760 Gallons, 16 Ounces"
brand: "crystalclear"
price: "16577 Ft"
currency: HUF
in_stock: true
reviews_count: 6
category: "Crystal Clear"
url: https://www.desertcart.hu/products/66837404-algae-d-solv-pond-algae-control-fast-acting-epa-registered
store_origin: HU
region: Hungary
---

# Fast-acting algae control Copper-free, safe for koi & plants Treats up to 5,760 gallons Algae D-Solv Pond Algae Control, Fast-Acting EPA Registered Algaecide, Use in Fountains & Outdoor Ponds Containing Koi & Other Fish, Treats 5,760 Gallons, 16 Ounces

**Brand:** crystalclear
**Price:** 16577 Ft
**Availability:** ✅ In Stock

## Summary

> 🌊 Clear your pond, clear your mind — algae doesn’t stand a chance!

## Quick Answers

- **What is this?** Algae D-Solv Pond Algae Control, Fast-Acting EPA Registered Algaecide, Use in Fountains & Outdoor Ponds Containing Koi & Other Fish, Treats 5,760 Gallons, 16 Ounces by crystalclear
- **How much does it cost?** 16577 Ft with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hu](https://www.desertcart.hu/products/66837404-algae-d-solv-pond-algae-control-fast-acting-epa-registered)

## Best For

- crystalclear enthusiasts

## Why This Product

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

## Key Features

- • **Eco-Safe Formula:** No copper, ensuring your koi and ornamental plants thrive without harm.
- • **Massive Coverage:** One 16 oz bottle treats up to 5,760 gallons—perfect for large ponds & fountains.
- • **Versatile Application:** Ideal for ponds, fountains, water gardens, and aquariums—no outflow needed.
- • **Effortless Maintenance:** Simple dosing keeps algae at bay with minimal pond disruption or draining.
- • **Rapid Algae Eradication:** Clears green water, string algae & blanketweed in days, not weeks.

## Overview

CrystalClear Algae D-Solv is a fast-acting, broad-spectrum algaecide designed to eliminate various algae types including green water algae, string algae, and blanketweed. Its copper-free formula ensures safety for koi fish and ornamental plants, making it ideal for ponds, fountains, and water gardens. One 16-ounce bottle treats up to 5,760 gallons, providing an easy, effective alternative to draining or scrubbing your pond. Regular dosing maintains crystal-clear water and reduces maintenance efforts.

## Description

Buy CrystalClear Algae D-Solv Pond Algae Control, Fast-Acting EPA Registered Algaecide, Use in Fountains & Outdoor Ponds Containing Koi & Other Fish, Treats 5,760 Gallons, 16 Ounces: Water Treatment - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: It worked, it really worked! With one caveat. - This was recommended to me to The Pond Guy. We had some extensive work done on our pond this past spring, and the people who did the work also said they’d clean our pond… they used a pressure washer. A real no-no, as the spray is too harsh and washes off all the ‘good algae’. A plain garden hose would have sufficed and been far better. Anyway, flash forward 8 weeks and I had the worst string algae ever. So thick… I used a stick to pull up globs every morning, and that didn’t touch the issue. It just got out of hand. Our pond is small – only 500 gallons. I used 1-1/2 ounces - first I cleaned a bucket very well, then dipped it into my pond and collected a bit of pond water. Then I added the Algae D-Solv to the pond water, swished to mix, and gently poured it into our pond. I repeated this every 3 day, for a total of 3 times. After the 3rd day of the 3rd treatment (12 days later), there was NO string algae. None. Of course, throughout the treatment I did have to clean the pond, the filter, and skimmer daily. Also, I have 2 falls, and added 4 bubblers while I treated the pond, for added aeration, which helps. Unfortunately, it left my pond very turbid. I couldn’t see the fish, or anything. Tried water changes – several. Added beneficial bacteria (unnecessary). No help. Finally ordered CrystalClear RapiClear Liquid Flocculent – one treatment did the job. After that, I occasionally treat the string algae, once, which does the trick, and several days later add the flocculent. I have comets and shubunkins, and because I know my pond’s correct volume, they were never harmed, nor were my water lilies, hyacinths, or other pond and bog plants. I also had a couple comet fry, and they are fine. Not a fan of adding anything to my pond. I'm a big believer in letting nature do it's thing. But sometimes the pond needs a bit of human intervention to keep it healthy. UPDATE: The weather has cooled off here, and this product does not work as well in cool/cold weather, BUT it does work - you need to give it time. My string algae started to return so I did 3 treatments, adding the D Solv every 3 days. After the 3rd treatment I just gave the pond a few extra days and sure enough, it's totally clear of string algae once again (average nighttime temps are in the low 50's and I've stopped feeding the fish, of course).
Review: Green pond - Wow! is what I say about this product. It works really good. The before and after pictures in the product advertisement were what made me purchase this brand. But didn’t know if it was true or not so what the heck I’ll try it. And boy was it right? My outdoor pond looks so clean like no other time before. I wished I would have taken a picture before I put this in but ugh. It literally took minutes for it to clear up from green to absolutely clear. Can see all the way to the bottom. Great product.

## Features

- Highly Effective Algaecide: Fast-acting, broad-spectrum algae remover effective in controlling many different types of algae including green water algae, string or hair algae, and blanketweed.
- No More Green Water: Perfect for controlling existing algae blooms and getting your pond back on track to being clean and clear. An easy-to-use alternative to draining and scrubbing your entire pond.
- Will Not Harm Koi & Ornamental Plants: Algae D-Solv contains no copper and will not harm fish or decorative plants when used as directed. Before using algae treatment, ensure pond has aeration.
- Easy Application: Apply 1 fl oz Algae D-Solv per 360 gallons of water. Once pond algae growth is under control, weekly doses will control algae growth and reduce pond maintenance.
- Variety of Applications: A great algae maintenance solution for fountains, self-contained aquariums, backyard ponds, lined water gardens, and decorative ponds without any outflow.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01N3UW3OR |
| Best Sellers Rank | #4,234 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #9 in Water Garden & Pond Treatment |
| Date First Available | December 15, 2016 |
| Item Weight | 1 pounds |
| Item model number | CC073-16 |
| Manufacturer | Airmax |
| Product Dimensions | 2.5 x 2.5 x 8.5 inches |

## Product Details

- **Brand:** CrystalClear
- **Item Form:** Liquid
- **Item Weight:** 16 Ounces
- **Liquid Volume:** 16 Fluid Ounces
- **Manufacturer:** Airmax

## Images

![Algae D-Solv Pond Algae Control, Fast-Acting EPA Registered Algaecide, Use in Fountains & Outdoor Ponds Containing Koi & Other Fish, Treats 5,760 Gallons, 16 Ounces - Image 1](https://m.media-amazon.com/images/I/61OLGoXPwaL.jpg)

## Available Options

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

## Questions & Answers

**Q: My rocks are still covered in algae after two applications: any tips?**
A: When using CrystalClear Algae D-Solv, make sure to clean the excess algae off the sides, ornaments, and rocks before adding this product. This will reduce the amount of decaying organic matter.  Also, you will get the best results using this product in conjunction with vigorous aeration and then following up with beneficial bacteria.

**Q: Is this product safe to use on water features that attract birds?**
A: Sorry don’t know. Ask manufacturer

**Q: How much for a 300 hondred gallon pond**
A: Dilute 1 ounce of CrystalClear Algae D-Solv for every 360 gallons in a container of pond water. Pour the solution into the pond in an area with the greatest circulation. You will see the best results using Algae D-Solv in conjunction with vigorous aeration.

**Q: I just have a small fountain, how much should I use for 4 gallons?**
A: Guessing teaspoon.  A small portio you’d use in a koi pond. Read instruction. Use a small % of that. We have 2 koi ponds 4x16x2 feet and 4 ft wide and 2 feet deep x 22 feet long.

## Customer Reviews

### ⭐⭐⭐⭐⭐ It worked, it really worked! With one caveat.
*by C***. on September 26, 2023*

This was recommended to me to The Pond Guy. We had some extensive work done on our pond this past spring, and the people who did the work also said they’d clean our pond… they used a pressure washer. A real no-no, as the spray is too harsh and washes off all the ‘good algae’. A plain garden hose would have sufficed and been far better. Anyway, flash forward 8 weeks and I had the worst string algae ever. So thick… I used a stick to pull up globs every morning, and that didn’t touch the issue. It just got out of hand. Our pond is small – only 500 gallons. I used 1-1/2 ounces - first I cleaned a bucket very well, then dipped it into my pond and collected a bit of pond water. Then I added the Algae D-Solv to the pond water, swished to mix, and gently poured it into our pond. I repeated this every 3 day, for a total of 3 times. After the 3rd day of the 3rd treatment (12 days later), there was NO string algae. None. Of course, throughout the treatment I did have to clean the pond, the filter, and skimmer daily. Also, I have 2 falls, and added 4 bubblers while I treated the pond, for added aeration, which helps. Unfortunately, it left my pond very turbid. I couldn’t see the fish, or anything. Tried water changes – several. Added beneficial bacteria (unnecessary). No help. Finally ordered CrystalClear RapiClear Liquid Flocculent – one treatment did the job. After that, I occasionally treat the string algae, once, which does the trick, and several days later add the flocculent. I have comets and shubunkins, and because I know my pond’s correct volume, they were never harmed, nor were my water lilies, hyacinths, or other pond and bog plants. I also had a couple comet fry, and they are fine. Not a fan of adding anything to my pond. I'm a big believer in letting nature do it's thing. But sometimes the pond needs a bit of human intervention to keep it healthy. UPDATE: The weather has cooled off here, and this product does not work as well in cool/cold weather, BUT it does work - you need to give it time. My string algae started to return so I did 3 treatments, adding the D Solv every 3 days. After the 3rd treatment I just gave the pond a few extra days and sure enough, it's totally clear of string algae once again (average nighttime temps are in the low 50's and I've stopped feeding the fish, of course).

### ⭐⭐⭐⭐⭐ Green pond
*by R***Y on July 28, 2025*

Wow! is what I say about this product. It works really good. The before and after pictures in the product advertisement were what made me purchase this brand. But didn’t know if it was true or not so what the heck I’ll try it. And boy was it right? My outdoor pond looks so clean like no other time before. I wished I would have taken a picture before I put this in but ugh. It literally took minutes for it to clear up from green to absolutely clear. Can see all the way to the bottom. Great product.

### ⭐⭐⭐⭐ Great product, works well
*by S***L on October 26, 2025*

This is my review of Airmax’s Pond Algae Control Product Been using this product for a bit of time. It does the job of controlling the algae in my Koi’ ponds. Depending on the size of your pond, you can get this product in 16oz, 32oz, 1 gal, 2.5 gal, sizes. It is a liquid, so it is easy to add. One word of caution, read the instructions carefully, and only add the recommended amount. If you overuse it, it can damage your plants and hurt or kill your fish. Please be careful.

## Frequently Bought Together

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*Product available on Desertcart Hungary*
*Store origin: HU*
*Last updated: 2026-02-20*