--- product_id: 48226787 title: "Tetra 246911 Active Aquarium Substrate 6 L" brand: "tetra" price: "£19.47" currency: GBP in_stock: true reviews_count: 13 url: https://www.desertcart.co.uk/products/48226787-tetra-246911-active-aquarium-substrate-6-l store_origin: GB region: United Kingdom --- # Optimized for plant growth Clears cloudy water fast 6L nutrient-rich substrate Tetra 246911 Active Aquarium Substrate 6 L **Brand:** tetra **Price:** £19.47 **Availability:** ✅ In Stock ## Summary > 🌊 Transform your tank into a thriving aquatic paradise! ## Quick Answers - **What is this?** Tetra 246911 Active Aquarium Substrate 6 L by tetra - **How much does it cost?** £19.47 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/48226787-tetra-246911-active-aquarium-substrate-6-l) ## 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 - • **Root Powerhouse:** Enhances root development with nutrient-rich granules for thriving plants. - • **Trusted Quality:** Synthetic, reliable formula with 4.6-star rating from nearly 5,000 enthusiasts. - • **Stress-Free Setup:** Easy to rinse and layer, perfect for busy professionals seeking hassle-free aquarium care. - • **Crystal Clear Waters:** Formulated to rapidly clear cloudy water, creating a pristine underwater view. - • **Aquatic Oasis Builder:** 6 liters of active substrate fuels lush plant growth and vibrant aquatic life. ## Overview The Tetra 246911 Active Aquarium Substrate is a 6-liter synthetic granule substrate designed to promote healthy plant growth and clear water in freshwater aquariums. It supports root development and soil conditioning, is easy to use, and highly rated by thousands of aquarium owners for its effectiveness and reliability. ## Description From the manufacturer Tetra ActiveSubstrate The large surface area and porous structure of the water-neutral clay granules offer various advantages and ensure optimum rooting and strong plant growth. Details Encourages the settlement of beneficial bacteria Favours faster rooting of plants Promotes strong and healthy plant growth Reduces organic water contamination Natural, attractive appearance Prevents substrate compaction Dosage Wash thoroughly before use to remove transport-related abrasion and avoid turbidity. Fill the aquarium with an approximately 4cm high layer of Tetra ActiveSubstrate. For optimal plant growth, we recommend a 2 - 4cm high layer of the ground concentrate Tetra CompleteSubstrate as a base. Review: Plants grow well in it. - Plants grow well in it. Looks nice as well. Needs a lot of washing before use. Review: Substrate for aquarium plants - Tetra substrate fixed clowdy water problem for my aquarium. I placed substrate as the lower level, added one more layer of pond substrate, covered with stones. Plants love it, water cleared in couple days. Also added good bacteria gel into filter, all worked well for plants and fish are happy. ## Features - Warning:Not suitable for children under 3 years. For use under adult supervision - Warning:To be used under the direct supervision of an adult - Made specifically for pets - Imported product - Rich content - Reliable manufacturing center - For pet use only ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00MBKBP88 | | Best Sellers Rank | 2,738 in Pet Supplies ( See Top 100 in Pet Supplies ) 5 in Aquarium Gravel | | Brand | Tetra | | Brand Name | Tetra | | Coverage | 6 liters | | Customer Reviews | 4.6 out of 5 stars 5,013 Reviews | | Global Trade Identification Number | 04004218246911 | | Item Form | Granules | | Item Weight | 4.89 Kilograms | | Item form | Granules | | Item weight | 4.89 Kilograms | | Liquid Volume | 6 Litres | | Liquid volume | 6 Litres | | Manufacturer | Tetra | | Mixing Ratio | 1:0:0 | | Model Number | 246911 | | Number of Items | 1 | | Part Number | 246911 | | Specific Uses For Product | Plant Growth, Root Development, Soil Conditioning | | Specific uses for product | Plant Growth, Root Development, Soil Conditioning | | Target Species | Plants | | Unit Count | 1 count | ## Product Details - **Brand:** Tetra - **Item form:** Granules - **Item weight:** 4.89 Kilograms - **Liquid volume:** 6 Litres - **Specific uses for product:** Plant Growth, Root Development, Soil Conditioning ## Images ![Tetra 246911 Active Aquarium Substrate 6 L - Image 1](https://m.media-amazon.com/images/I/91FEjXUoF2L.jpg) ![Tetra 246911 Active Aquarium Substrate 6 L - Image 2](https://m.media-amazon.com/images/I/A1hoIHToYBL.jpg) ![Tetra 246911 Active Aquarium Substrate 6 L - Image 3](https://m.media-amazon.com/images/I/91373oACYcL.jpg) ![Tetra 246911 Active Aquarium Substrate 6 L - Image 4](https://m.media-amazon.com/images/I/31jHXFwC1uL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Am i right in thinking this is a topper for tetra plant complete substrate?** A: Yes this goes on top of the Tetra complete. Take a look at the tetra complete and it shows you in the pictures from the tub. **Q: Can I use it also for my indoor plants? It is excellent for the aquarium.** A: Yes, mix it 50/50 with a good compost. It has so many good plant nutrients. I also water my plants with my old aquarium water with stunning results. **Q: Can you just put this in your tank?** A: Yes you can. I have used it over a layer of complete substrate which is more like a sand and needs to be kept in place by the tetra active. But you can use the tetra active just like you would stones in your tank. **Q: hello all, is this shrimp safe? I really don't want this stuff leaching nitrate into the water column. I was planning on using this below some Manado.** A: I used this and my nitrates went up. However Ive ammo shrimps bambo shrimps and pinocio shrimp all doing very well. Plants are doing ok to ## Customer Reviews ### ⭐⭐⭐⭐⭐ Plants grow well in it. *by B***E on 30 March 2026* Plants grow well in it. Looks nice as well. Needs a lot of washing before use. ### ⭐⭐⭐⭐⭐ Substrate for aquarium plants *by L***V on 4 July 2024* Tetra substrate fixed clowdy water problem for my aquarium. I placed substrate as the lower level, added one more layer of pond substrate, covered with stones. Plants love it, water cleared in couple days. Also added good bacteria gel into filter, all worked well for plants and fish are happy. ### ⭐⭐⭐⭐ It's good quality *by M***N on 17 March 2025* It is good for price and works as it should ## Frequently Bought Together - Tetra 246911 Active Aquarium Substrate 6 L - Tetra Complete Substrate, Activates Strong and Healthy Plant Growth in an Aquarium, 5 kg --- ## 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/48226787-tetra-246911-active-aquarium-substrate-6-l](https://www.desertcart.co.uk/products/48226787-tetra-246911-active-aquarium-substrate-6-l) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-28*