--- product_id: 253733651 title: "Co2 Tabs Plus Fish Aquarium, 3.2 Oz" brand: "sera" price: "€ 36.04" currency: EUR in_stock: true reviews_count: 5 category: "Sera" url: https://www.desertcart.at/products/253733651-co2-tabs-plus-fish-aquarium-3-2-oz store_origin: AT region: Austria --- # Optimizes pH for aquatic plants & fish 100 ml CO2 release per tablet Easy slot placement in diffusion reactor Co2 Tabs Plus Fish Aquarium, 3.2 Oz **Brand:** sera **Price:** € 36.04 **Availability:** ✅ In Stock ## Summary > 🌿 Elevate your aquarium’s vibe with every bubble! ## Quick Answers - **What is this?** Co2 Tabs Plus Fish Aquarium, 3.2 Oz by sera - **How much does it cost?** € 36.04 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/253733651-co2-tabs-plus-fish-aquarium-3-2-oz) ## Best For - sera enthusiasts ## Why This Product - Trusted sera brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **BPA-Free & Safe:** Crafted without harmful chemicals, ensuring a safe, eco-conscious addition to your aquatic ecosystem. - • **Precision CO2 Boost:** Each tablet delivers a consistent 100 ml CO2 burst, fueling lush plant growth and vibrant aquatic life. - • **Emergency CO2 Backup:** Perfect for those moments you forget to refill your CO2 system—fast-acting and reliable. - • **Effortless Integration:** Simply drop the tablet into your CO2 diffusion reactor slot—no mess, no fuss, just instant activation. - • **Balanced Aquarium Chemistry:** Maintains a lightly acidic pH, creating the ideal environment preferred by both plants and fish. ## Overview Sera CO2 Tabs Plus are precision-engineered tablets that release approximately 100 ml of CO2 upon contact with aquarium water, optimizing pH levels and providing essential nutrients for aquatic plants and fish. Designed for easy use in CO2 diffusion reactors, these BPA-free tablets offer a fast, reliable CO2 source, making them an ideal emergency supplement or regular booster for thriving freshwater ecosystems. ## Description Sera Co2 Tabs Are Simply Placed Into The According Slot Of The Co2 Diffusion Reactor. Upon Contact With Aquarium Water, Each Tablet Releases Approx. 100 Ml (Representing 2500 Counting Bubbles) Of Co2, Plus Valuable Trace Elements And Vitalizing Substances Providing A Continual, Properly Dosed Presence In The Tank Product Features : Sera Co2 Tabs Are Simply Placedaccording Slot Of The Co2 Diffusion Reactorupon Contact With Aquarium Water, Each Tablet Releases Approx. 100 Ml Of Co2. Review: Fast release Co2 tabs - They released lots of Co2 but released it extremely quick so not really good for my requirements of adding Co2 to a grow room for hot chillys and various herbs it just got pulled out with the air exchanger in a matter of minutes where I needed it to be a more steady stream of bubbles, not its intended use I no but hoped it would be a cheap alternative to an expensive Co2 generator. Review: Se lo meto al Bote de JBL con un agua y veo como el CO2 sale - Me gusta: La facilidad de uso y eficacia. Se lo meto en el bote de JBL con un poco de agua y veo como van saliendo despacio las burbujas de co2, en caso de tener alguna urgencia. Por olvido de echarlo, etc. No me gusta: De momento ninguna queja. Lo tengo para urgencias para cuando se me olvida rellenar el CO2, le meto la pastilla en el bote de JBL y es una maravilla. No me ha defraudado nunca. Lo seguiré comprando ## Features - Sera CO2 tablets for sera CO2-Start. CO2 is the basic plant nutrient and allows adjusting a lightly acidic pH value, as it is preferred by many plants and fish. - According slot of the CO2 diffusion reactor - Upon contact with aquarium water, each tablet releases approx. 100 ml of CO2 - Sera CO2 Tabs are simply placed ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0013ZCCCA | | Allergen Information | BPA-Free | | Best Sellers Rank | #3,574 in Pet Supplies ( See Top 100 in Pet Supplies ) #16 in Fish Medication & Health Supplies | | Brand | Sera | | Brand Name | Sera | | Country of Publication | Germany | | Customer Reviews | 4.3 out of 5 stars 842 Reviews | | Global Trade Identification Number | 04001942080408 | | Item Form | Tablets | | Item Type Name | Sera CO2 Tabs Plus 20 Tabs Count - 20 | | Item Weight | 90 Grams | | Item form | Tablets | | Item weight | 90 Grams | | Liquid Volume | 100 Milliliters | | Liquid volume | 100 Milliliters | | Manufacturer | Sera | | Manufacturer Part Number | 8040 | | Model Number | 8040 | | Pet Type | Fish | | Target Species | Aquatic Plants | | UPC | 013560086544 | | Unit Count | 20 Count | | Unit count | 20 Count | | Warranty Description | No | ## Product Details - **Brand:** Sera - **Liquid volume:** 100 Milliliters - **Item weight:** 90 Grams - **Item form:** Tablets - **Manufacturer:** Sera ## Images ![Co2 Tabs Plus Fish Aquarium, 3.2 Oz - Image 1](https://m.media-amazon.com/images/I/51BzMT4WJKL.jpg) ## Customer Reviews ### ⭐⭐⭐ Fast release Co2 tabs *by A***R on 6 September 2020* They released lots of Co2 but released it extremely quick so not really good for my requirements of adding Co2 to a grow room for hot chillys and various herbs it just got pulled out with the air exchanger in a matter of minutes where I needed it to be a more steady stream of bubbles, not its intended use I no but hoped it would be a cheap alternative to an expensive Co2 generator. ### ⭐⭐⭐⭐⭐ Se lo meto al Bote de JBL con un agua y veo como el CO2 sale *by J***S on 5 July 2019* Me gusta: La facilidad de uso y eficacia. Se lo meto en el bote de JBL con un poco de agua y veo como van saliendo despacio las burbujas de co2, en caso de tener alguna urgencia. Por olvido de echarlo, etc. No me gusta: De momento ninguna queja. Lo tengo para urgencias para cuando se me olvida rellenar el CO2, le meto la pastilla en el bote de JBL y es una maravilla. No me ha defraudado nunca. Lo seguiré comprando ### ⭐⭐⭐⭐⭐ A must have for planted tanks! *by C***R on 1 June 2026* Works very well to boost CO2 in planted tanks! Plants grew wonderful after! ## Frequently Bought Together - sera 08040 CO2 Tablets Plus (20 CO2 tablets) Suitable for the sera CO2 Start or sera Plant Care Set - Tetra CO2 Plus 250 ml - Tetra FilterActive filter starter with highly active Live Bacteria, supports biological activity in the aquarium, accelerates removal of harmful substances, optimises cleaning performance of the filter, various sizes --- ## 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.at/products/253733651-co2-tabs-plus-fish-aquarium-3-2-oz](https://www.desertcart.at/products/253733651-co2-tabs-plus-fish-aquarium-3-2-oz) --- *Product available on Desertcart Austria* *Store origin: AT* *Last updated: 2026-08-18*