--- product_id: 89982509 title: "Brightwell Aquatics ChaetoGro Liquid Fertilizer for Chaetomorpha, 500 ml" brand: "brightwell aquatics" price: "€ 46.51" currency: EUR in_stock: true reviews_count: 13 url: https://www.desertcart.hr/products/89982509-brightwell-aquatics-chaetogro-liquid-fertilizer-for-chaetomorpha-500-ml store_origin: HR region: Croatia --- # Nitrate & phosphate free 13 essential elements Proudly made in USA Brightwell Aquatics ChaetoGro Liquid Fertilizer for Chaetomorpha, 500 ml **Brand:** brightwell aquatics **Price:** € 46.51 **Availability:** ✅ In Stock ## Summary > 🌿 Elevate your marine tank with the ultimate chaeto growth catalyst! ## Quick Answers - **What is this?** Brightwell Aquatics ChaetoGro Liquid Fertilizer for Chaetomorpha, 500 ml by brightwell aquatics - **How much does it cost?** € 46.51 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/89982509-brightwell-aquatics-chaetogro-liquid-fertilizer-for-chaetomorpha-500-ml) ## Best For - brightwell aquatics enthusiasts ## Why This Product - Trusted brightwell aquatics brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Flexible Dosing Regimen:** Customizable dosing options for both beginners and advanced aquarists - • **Clean & Balanced Formula:** Nitrate and phosphate free to prevent algae overload and maintain crystal-clear water - • **Precision Nutrient Boost:** Delivers 13 critical elements for vibrant chaetomorpha growth and reef vitality - • **Trusted American Craftsmanship:** Scientifically backed, premium quality made in the USA for aquarium excellence - • **Universal Marine Compatibility:** Safe for all marine tanks including ULNS, shrimp, and invertebrates ## Overview Brightwell Aquatics ChaetoGro is a scientifically formulated multi-nutrient supplement designed to optimize chaetomorpha algae growth in all marine aquariums. Featuring 13 essential elements and a nitrate/phosphate-free formula, it supports healthy algae and reef ecosystems while being safe for shrimp and invertebrates. Proudly made in the USA, it offers flexible dosing for both novice and expert aquarists seeking a balanced, vibrant aquatic environment. ## Description Brightwell Aquatics ChaetoGro Multi-Nutrient Supplement for Chaetomorpha Growth Experience a new standard in aquarium water treatment with Brightwell Aquatics' Balanced ChaetoGro Multi-Nutrient Supplement for Chaetomorpha Growth – the ultimate solution for achieving a balanced and thriving aquatic environment for algae and reef. Backed by extensive research on algae nutrient requirements, this chaeto grow supplement stands out as a premium choice for enthusiasts seeking a well-balanced and effective approach to aquarium care. Crafted with precision, ChaetoGro offers a comprehensive blend of 13 critical elements essential for algae's proper functioning. Experience dosing flexibility with both basic and advanced options, choosing daily dosing for a stable environment. Compatible with all marine aquariums and ULNS systems, this product is safe for shrimp and invertebrates. Combine it with MicroBacter7 and Reef BioFuel or Katalyst for enhanced effectiveness. Follow expert recommendations to maintain optimal nutrient levels for chaeto algae growth. Whether you're setting up a new tank or maintaining an established one, ChaetoGro is your go-to solution. FEATURES AT A GLANCE Suitable for all marine aquariums and ULNS systems Safe for shrimp and invertebrates Phosphate and Nitrate free Provides 13 elements critical to long-term health, growth, and coloration of marine algae, also replenishes these elements so that they are available for corals and other inverts Well-suited to ULNS aquariums and designed for nutrient control of phosphates and nitrates by chaetomorpha uptake Formulated utilizing extensive research on aquatic algae nutrient requirements AMERICAN-MADE EXCELLENCE Trust in the quality and excellence of Brightwell Aquatics, an industry-leading brand committed to providing innovative and scientifically backed aquatic care products. Made in the USA, we consistently strive to deliver advanced superior quality solutions to elevate the vibrancy and health of your aquarium. ## Features - MULTI-NUTRIENT SUPPLEMENT – This multi-nutrient supplement for chaeto growth supplies essential nutrients necessary for the health and growth of chaetomorpha algae. ChaetoGro is nitrate and phosphate free, removing excess nitrates and phosphates - MULTI-ELEMENT SUPPORT – This mineral supplement includes 13 critical elements. For example, Potassium supports protein synthesis, boron supplements support chlorophyll production, and magnesium acts as a component of chlorophyll enzyme activation - FOR ALL MARINE ALGAE – Use MicroBacter 7, Reef BioFuel, or Katalyst to sustain proper carbon levels and bacterial function essential for Chaeto's effectiveness. Suitable for all marine aquariums, including ULNS, shrimp and other invertebrates - DIRECTIONS – Shake this algae nutrient before use. In the initial 2 weeks add 5ml per 20 gallons twice weekly. In a basic regimen, 500 ml treats up to 2,000 gallons. The advanced daily dose is 6 drops per 20 gallons, then adjusted weekly - AMERICAN-MADE EXCELLENCE – Brightwell Aquatics is a top brand dedicated to creating innovative, scientifically backed aquatic care products. Proudly made in the USA, we deliver superior solutions to enhance the health and vibrancy of your aquarium ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B07FM7KS76 | | Best Sellers Rank | #263 in Aquarium Water Treatments | | Date First Available | July 12, 2018 | | Item Model Number | CHGR500 | | Manufacturer | Brightwell Aquatics | | Product Dimensions | 2.5 x 2.5 x 6.75 inches; 1.15 Pounds | ## Product Details - **Brand:** Brightwell Aquatics - **Item Form:** Liquid - **Item Weight:** 1.15 Pounds - **Liquid Volume:** 500 Milliliters - **Manufacturer:** Brightwell Aquatics ## Images ![Brightwell Aquatics ChaetoGro Liquid Fertilizer for Chaetomorpha, 500 ml - Image 1](https://m.media-amazon.com/images/I/71iriyIsNdL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Is this suited for Caulerpa and other macroalgae as well?** A: Yes it is **Q: Used as stated on instructions, but had 3 fish die after 2nd dose. Is there something in this product that could have cause this? Looks Chemical burn** A: I have used many times but didn't kill any fish though I don't have tons of fish. I usually like corals. I would suggest contact Brisghtwell. **Q: should you use bothe chaeto grow and fereiron together?** A: I used only Chaeto. **Q: I have a small refugium inside my display tank if I add this my live stock will be fine?** A: "It says it won't". It won't what, be fine, or they mean it is fine for live stock? ## Customer Reviews ### ⭐⭐⭐⭐⭐ Algae nutrient supplement *by on Reviewed in the United States December 6, 2025* This stuff is really good, not only for chaeto, but for fertilizing all macroalgae. ### ⭐⭐⭐⭐⭐ Excellent tool for a refugium or algae reactor. *by on Reviewed in the United States June 27, 2024* I put this on an auto doser for daily dispensing. I dose 2ml per day. Since it's addition to my reef aquarium it has certainly boosted the growth of the chaeto in my algae reactor and in turn lowered my nutrient levels. ### ⭐⭐⭐⭐⭐ Great *by on Reviewed in the United States May 26, 2026* Great ## Frequently Bought Together - Brightwell Aquatics - ChaetoGro - Algae Nutrient Supplement for Chaetomorpha Growth in All Marine Fish Tanks - Multi-Nutrient Aquarium Water Treatments, 16.9 fl oz - Brightwell Aquatics NeoNitro Balanced Nitrogen Supplement - Reef Nutrient Enhancer for Ultra-Low Nutrient Systems - Aquarium Water Treatments, 17 fl oz - Brightwell Aquatics - NeoPhos - Balanced Phosphorus Source for Phosphorus-Limited, Low-Nutrient Reef Aquaria - Aquarium Water Treatments, 16.9 fl oz --- ## 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.hr/products/89982509-brightwell-aquatics-chaetogro-liquid-fertilizer-for-chaetomorpha-500-ml](https://www.desertcart.hr/products/89982509-brightwell-aquatics-chaetogro-liquid-fertilizer-for-chaetomorpha-500-ml) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-06-24*