--- product_id: 4480860 title: "Tetra 77188 Algae Control Treats 36000 gallons, 101.4-Ounce" brand: "tetra" price: "$164.06" currency: USD in_stock: true category: "Tetra" url: https://www.desertcart.us/products/4480860-tetra-77188-algae-control-treats-36000-gallons-101-4-ounce store_origin: US region: United States of America --- # Fast-acting algae control Safe for plants & fish Treats 36,000 gallons Tetra 77188 Algae Control Treats 36000 gallons, 101.4-Ounce **Brand:** tetra **Price:** $164.06 **Availability:** ✅ In Stock ## Summary > 🌊 Clear waters, happy ponds—because your oasis deserves the best! ## Quick Answers - **What is this?** Tetra 77188 Algae Control Treats 36000 gallons, 101.4-Ounce by tetra - **How much does it cost?** $164.06 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/4480860-tetra-77188-algae-control-treats-36000-gallons-101-4-ounce) ## Best For - tetra enthusiasts ## Why This Product - Trusted tetra brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Triple-Algae Defense:** Effectively eliminates green water, string/hair algae, and stubborn blanket weed for crystal-clear water. - • **Trusted Legacy Brand:** Backed by 50 years of Tetra expertise, a go-to choice for pond enthusiasts who demand quality and results. - • **Massive Coverage Power:** One 101.4 oz bottle treats up to 36,000 gallons—keep your pond pristine without constant refills. - • **Eco-Friendly & Fish-Safe:** Formulated to protect your ornamental fish and live plants, so your pond stays vibrant and healthy. - • **Precision Dosing for Maximum Impact:** Use just 25 mL per 300 gallons with easy dilution—target algae without harming your ecosystem. ## Overview Tetra 77188 Algae Control is a powerful liquid treatment designed to clear up to 36,000 gallons of pond water by targeting green water, string algae, and blanket weed. Safe for ornamental fish and plants, it offers fast, effective algae control for fountains and synthetic-lined ponds. Trusted by hobbyists for over 50 years, this precision formula ensures a healthy, vibrant aquatic environment with minimal effort. ## Description For 50 years, fishkeeping enthusiasts have looked to the Tetra name for products and solutions that add ease and beauty to their home. Whether you're an experienced hobbyist or just starting out, Tetra has everything you need–-from a large variety of quality fish food and innovative equipment to test kits and decor. TetraPond AlgaeControl removes green algae in pond water fast. Tetra AlgaeControl effectively combats algae blooms (green water), string and hair algae (Spirogyra) and blanket weed (Oedogonium). This product can be used in fountains and ornamental ponds with plants and ornamental fish when used as directed. Apply the dosage in the morning. Dislodge string algae off stones with high pressure nozzle and scoop out with a fine mesh net or pond vacuum. Figure out the correct dosage according to product label. Dedicate use of measuring cup to algaecide applications only. Dilute the proper dosage in a bucket of pond water. Pour diluted mixture into the pond evenly along the edges. Do not overdose. Repeat if needed every three days up to three total doses. Remove dead algae from pond and do a partial water change. Do not use in ponds established for less than three months. ## Features - CONTROLS ALGAE: Liquid formula combats algal blooms that cause green water, string and hair algae and blanket weed. - FOR ORNAMENTAL PONDS & FOUNTAINS: Use only in fountains and ornamental ponds with synthetic liners. - SAFE FOR PLANTS & ORNAMENTAL FISH: Use with live plants and fish in ornamental outdoor ponds as directed. - USAGE: Use 25 mL for every 300 gallons of pond water. - TREATMENT: This 101.4 oz bottle treats 36,000 gallons. - Effective at combating algae blooms - Controls string and hair algae - Controls weed blanket - Safe for ornamental plants and fish - 8.4 ounces treats up to 3,000 gallons ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000HAU4P4 | | ASIN | B000HAU4P4 | | Allergen Information | Cashews Free | | Best Sellers Rank | #29,573 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #100 in Water Garden & Pond Treatment | | Brand Name | Tetra | | Customer Reviews | 4.3 4.3 out of 5 stars (576) | | Date First Available | May 3, 2006 | | Department | Home | | Global Trade Identification Number | 00046798771883 | | Included Components | Water Fountains and Accessories^pond-water-treatments | | Is Discontinued By Manufacturer | No | | Item Form | Liquid | | Item Type Name | Tetra 77188 Algae Control Treats 36000 gallons, 101.4-Ounce | | Item model number | 77188 | | Liquid Volume | 101.4 Fluid Ounces | | Manufacturer | TetraPond | | Manufacturer | TetraPond | | Manufacturer Part Number | 77188 | | Model Number | 77188 | | Pet Type | Fish | | Product Dimensions | 4.25 x 6.63 x 10 inches; 7.06 Pounds | | Target Species | Fish | | UPC | 046798771883 | | Unit Count | 101.4 Fluid Ounces | | Warranty Description | See label | ## Product Details - **Brand:** Tetra - **Item Form:** Liquid - **Liquid Volume:** 101.4 Fluid Ounces - **Number of Packs:** 1 - **Unit Count:** 101.4 Fluid Ounces ## Images ![Tetra 77188 Algae Control Treats 36000 gallons, 101.4-Ounce - Image 1](https://m.media-amazon.com/images/I/81WOr64jYlL.jpg) ## Questions & Answers **Q: I have converted my 40,000 gal swimming pool into a large goldfish and turtle pond. I grow water plants on the steps. The main problem I have is with a thin dark green coating of algae on the pond (concrete) walls and the floor. The water is slightly cloudy, but has no floating algae on the top. Right now, when I v…** A: First, we do not recommend its use with turtles, since it has never been tested on them, and they have skin that they can absorb chemicals through. Second, if the algae you are referring to is actually short like hairs, this is a beneficial algae called hair algae, and unless there is an overabundance of it, we do not recommend killing it all off. It provides food for animal life, and helps to filter and balance the pond. And last, it might be more cost effective, and healthier for your animal life to try barley straw pillows instead as this will help control algae in an all natural fashion and has been known to be very effective in properly maintained ponds. If you have more questions, please give the Tetra Consumer Relations Team a call at 1-800-526-0650. **Q: What chemicals are in this product? I cannot read the label of the active ingredients.** A: Thank you for asking! The active ingredients are: poly oxyethylene (dimethyliminio) ethylene (dimethyliminio) ethylene dichloride. These ingredients make up 5.4% of the formula. The other 94.6% of ingredients are inert. We hope this answers your question! For more help contact Tetra at PHGAmazon@spectrumbrands.com. We are happy to help! **Q: What's the concentration of the active ingredient?** A: Hello David Slack,This product is made up of the following ingredients: Poly Ethylene 5.4%, Inert ingredients 94.6%. **Q: How long on average does it take to start working? Our pond is 125 gallons and pretty green right now. There's no visible string algae.** A: Hello SDB!This is a slow moving product, so it won't start clearing for at least 24-48 hours. However, give it a full 72 hours to do its job before deciding if you need a second treatment or not. If the pond is heavily stocked or has not had a recent partial water change, we recommend changing out around 25% of the water, and then applying a second dose. Don't forget to check your filters and clean them out as necessary, and remove any dead algae from the pond to prevent oxygen loss and toxicity issues. ## Frequently Bought Together - Tetra 77188 Algae Control Treats 36000 gallons, 101.4-Ounce - Summit Clear-Water Barley Straw Pond Treatment, 2-Pack, Treats upto 2000 Gallons, 1000 Gallons per Bale - Kaytee Koi's Choice Koi Floating Fish Food, 10 Pound --- ## 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/4480860-tetra-77188-algae-control-treats-36000-gallons-101-4-ounce](https://www.desertcart.us/products/4480860-tetra-77188-algae-control-treats-36000-gallons-101-4-ounce) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-07-09*