--- product_id: 253733651 title: "Sera Co2 Tabs Plus Fish Aquarium, 3.2 Oz" brand: "sera" price: "£25.66" currency: GBP in_stock: true reviews_count: 5 category: "Sera" url: https://www.desertcart.co.uk/products/253733651-sera-co2-tabs-plus-fish-aquarium-3-2-oz store_origin: GB region: United Kingdom --- # Supports optimal acidic pH for plants & fish 100 ml CO2 release per tablet Precise dosing via CO2 diffusion reactor slot Sera Co2 Tabs Plus Fish Aquarium, 3.2 Oz **Brand:** sera **Price:** £25.66 **Availability:** ✅ In Stock ## Summary > 🌿 Elevate your aquarium’s vibe with every bubble! ## Quick Answers - **What is this?** Sera Co2 Tabs Plus Fish Aquarium, 3.2 Oz by sera - **How much does it cost?** £25.66 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/253733651-sera-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:** Non-toxic formula suitable for all fish life stages - • **Effortless CO2 Boost:** Simply drop tablets into the reactor slot for instant activation - • **Trace Element Enrichment:** Infused with vitalizing substances for a thriving ecosystem - • **Consistent Plant Vitality:** Each tablet releases 100 ml of CO2, fueling lush aquatic growth - • **Balanced Aquarium Chemistry:** Maintains a lightly acidic pH 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 plant growth and maintaining a slightly acidic pH favored by aquatic life. Designed for easy use in CO2 diffusion reactors, these BPA-free tablets also deliver essential trace elements, ensuring a balanced and vibrant aquarium environment for all life stages. ## 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: A must have for planted tanks! - Works very well to boost CO2 in planted tanks! Plants grew wonderful after! ## Technical Specifications | Specification | Value | |---------------|-------| | Product Dimensions | 2.21 x 2.21 x 12.5 cm; 90 g | | Manufacturer recommended age | 1 month and up | | Item model number | 8040 | | Pet Life Stage | All Life Stages | | Item Form | Tablets | | Allergen Information | BPA-Free | | Color | standard | | Size | 3.2 OZ | | Number of Items | 1 | | Quantity | 1 | | Specific Uses | Active | | batteries required | No | | Batteries Included | No | | Item Weight | 90 g | ## Product Details - **Brand:** Sera - **Liquid volume:** 100 Milliliters - **Item weight:** 90 Grams - **Item form:** Tablets - **Manufacturer:** Sera ## Images ![Sera 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. ### ⭐⭐⭐⭐⭐ 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! ### ⭐⭐⭐⭐⭐ Aquarium 200l !! *by L***L on 23 August 2019* Utilisation pour un aquarium de 200l !!! Et fonctionne parfaitement le CO2 de mon bac monte bien (test JBL goute) et mes plantes se porte bien. Le kit start de sera est vraiment bien conçu cela évite les bouteilles de CO2 avec leurs systèmes hors de prix. ## 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.co.uk/products/253733651-sera-co2-tabs-plus-fish-aquarium-3-2-oz](https://www.desertcart.co.uk/products/253733651-sera-co2-tabs-plus-fish-aquarium-3-2-oz) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-07-21*