--- product_id: 7290908 title: "Gulfstream Tropical AGU00529 Ista Max Mix Co2 Reactor for Aquarium, Large" brand: "ista" price: "264.72 DT" currency: TND in_stock: true url: https://www.desertcart.tn/products/7290908-gulfstream-tropical-agu00529-ista-max-mix-co2-reactor-for-aquarium store_origin: TN region: Tunisia --- # 100% CO2 dissolution Fits pumps 250-500 GPH Tool-free assembly Gulfstream Tropical AGU00529 Ista Max Mix Co2 Reactor for Aquarium, Large **Brand:** ista **Price:** 264.72 DT **Availability:** ✅ In Stock ## Summary > 🌿 Elevate your planted tank game with zero CO2 waste—because your aquarium deserves the best! ## Quick Answers - **What is this?** Gulfstream Tropical AGU00529 Ista Max Mix Co2 Reactor for Aquarium, Large by ista - **How much does it cost?** 264.72 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/7290908-gulfstream-tropical-agu00529-ista-max-mix-co2-reactor-for-aquarium) ## Best For - ista enthusiasts ## Why This Product - Trusted ista brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Last:** Durable, acid-resistant materials withstand impact and simplify maintenance. - • **Hassle-Free Setup:** No tools needed—quick, intuitive assembly with clear diagram instructions right on the box. - • **Space-Savvy Design:** Compact form factor fits seamlessly inside or outside your aquarium setup. - • **Optimized for Power:** Large size perfectly matches pumps from 250 to 500 GPH for consistent performance. - • **Maximized CO2 Efficiency:** Patented impeller design ensures zero CO2 bubble loss for lush, vibrant plants. ## Overview The Gulfstream Tropical AGU00529 Ista Max Mix CO2 Reactor is engineered to dissolve 100% of CO2 into aquarium water using a patented impeller that eliminates bubble loss. Designed for pumps between 250-500 GPH, it offers tool-free assembly, a compact footprint for flexible placement, and durable, acid-resistant construction for long-lasting use and easy maintenance. ## Description Best way to diffuse the co2 into planted tanks. There is no co2 loss in this system. Inside the reactor, the co2 bubbles are broken down constantly until they´re completely dissolved into the water. When using regular (ceramic plates) diffusers, there is loss when the co2 bubbles reach the water surface. ## Features - MOST EFFICIENT: The Max Mix Reactor will dissolve 100% CO2 into the water. Patented impeller design completely eliminates the CO2 bubbles - EASY ASSEMBLY: No tools required for setting it up. Diagram set up instructions printed on side of box illustrates exact position of reactor - COMPACT: Makes it easy to fit exactly where you need it, internally or externally - DURABLE: Resistant to acidity and impact. Easy to clean and simple to maintain - Large size is designed for pumps from 250 to 500 GPH ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B005DGJEGC | | Best Sellers Rank | #2,027 in Aquarium Water Treatments | | Date First Available | July 19, 2011 | | Item Model Number | 529 | | Manufacturer | TopDawg Pet Supply | | Product Dimensions | 0.02 x 0.02 x 0.02 inches; 0.32 ounces | ## Product Details - **Brand:** ISTA - **Item Form:** Device - **Item Weight:** 9.07 g - **Number of Packs:** 1 - **Unit Count:** 1 Count ## Images ![Gulfstream Tropical AGU00529 Ista Max Mix Co2 Reactor for Aquarium, Large - Image 1](https://m.media-amazon.com/images/I/61xLEhSyQtL.jpg) ## Questions & Answers **Q: Got mine hooked up but the blades inside are not moving at all. CO2 just accumulates at the top. How do I get blades to rotate?** A: Sanding as described is a good idea ( I used 800 grit wet/dry). But the real problem is probably inside the water inlet tube where it enters the reactor body. Look into the water inlet tube; the opening at the reactor body should be perfectly round and there shouldn't be any plastic material protuding into the opening (it's particularly bad for propeller rotation if any excess material is protruding into the flow at the outside edge). My unit had about 10-15% of the diameter blocked at the outside edge - a small rat-tail file took care of that and the propellers-not-rotating-problem too. When reassembling the reactor, don't push the center tube assembly in tight - just far enough to mate the center tube with the water outlet. Then let screwing on the bottom cap push the center tube assembly into its final position. Both propellers should rattle freely after assembly. Good luck. **Q: Does this size reactor bring two suction cups like the smaller version?** A: Yes mine had 2. About a foot tall. Worked good. **Q: I see thats its mentioned they fit both 12/16 and 16/22mm, But I want to know if its 16/22mm with standard without an an adapter** A: The larger diameter is supported via really crappy adaptors. It will restrict flow very significantly. **Q: Will this work with an air pump instead of a canister filter?** A: this works with a canister filter, but not an air pump. ## Frequently Bought Together - Gulfstream Tropical AGU00529 Ista Max Mix Co2 Reactor for Aquarium, Large - JARDLI Glass CO2 Drop Checker – CO2 Monitor Kit for Aquarium Planted Tank CO2 System (Drop Checker with Solution) --- ## 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.tn/products/7290908-gulfstream-tropical-agu00529-ista-max-mix-co2-reactor-for-aquarium](https://www.desertcart.tn/products/7290908-gulfstream-tropical-agu00529-ista-max-mix-co2-reactor-for-aquarium) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-11-10*