--- product_id: 270779964 title: "Aqua Natural Aquarium Substrate, Diamond Black Fine Gravel, 10lb" brand: "aqua natural" price: "422.99 DT" currency: TND in_stock: true reviews_count: 13 category: "Aqua Natural" url: https://www.desertcart.tn/products/270779964-aqua-natural-aquarium-substrate-diamond-black-fine-gravel-10lb store_origin: TN region: Tunisia --- # sparkling light-reflective facets 100% natural quartz large surface area for beneficial bacteria Aqua Natural Aquarium Substrate, Diamond Black Fine Gravel, 10lb **Brand:** aqua natural **Price:** 422.99 DT **Availability:** ✅ In Stock ## Summary > 🖤 Elevate your aquarium game with the sparkle of natural quartz! ## Quick Answers - **What is this?** Aqua Natural Aquarium Substrate, Diamond Black Fine Gravel, 10lb by aqua natural - **How much does it cost?** 422.99 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/270779964-aqua-natural-aquarium-substrate-diamond-black-fine-gravel-10lb) ## Best For - aqua natural enthusiasts ## Why This Product - Trusted aqua natural brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Bacteria-Friendly Surface:** Large surface area promotes beneficial bacteria growth, naturally supporting tank cleanliness and ecosystem health. - • **Optimized Fine Grain Size:** 1-2mm particles provide the perfect balance between sand and gravel for superior plant anchoring and fish comfort. - • **Sparkling Visual Contrast:** Diamond Black’s light-reflective facets create a stunning underwater sparkle that elevates any planted tank. - • **Aquarium-Safe Natural Quartz:** 100% natural composition ensures a toxin-free environment for your aquatic life. - • **Effortless Aesthetic Upgrade:** Deep black tone contrasts beautifully with vibrant plants, making your aquarium a sleek, modern centerpiece. ## Overview Aqua Natural Aquarium Substrate in Diamond Black is a premium 10lb bag of fine 1-2mm natural quartz gravel designed to enhance aquatic environments. Its large surface area supports beneficial bacteria growth, while its sparkling facets and deep black color provide a striking contrast to plants and fish. Safe for all aquatic life, this substrate balances aesthetics with functionality, making it a top choice for discerning aquarium enthusiasts. ## Description Quartz Gravel is the Rolls-Royce of our range. Natural Quartz not only looks wonderful but has also been shown to help reduce the build up in the aquarium. This is partly due to the huge surface area of quartz which offers added space for the establishment of tank cleaning bacteria. Quartz sparkles underwater due to the many light reflecting facets and is a striking substrate that contrasts well with aquarium plants such as anubias and desertcart swords. Review: A Nice Fine Gravel. - Looks exactly as it should. It needed a good rinsing but that was expected. Black enough for me. Don't care about sparkles. Some reds and browns give it some contrast. This works for me. Review: Does what it’s supposed to and like good I. The process - Perfect consistency for Cory’s slight coarser than a true sand but close. Color is a true black with “sparkling “ crystal dispersed throughout. I did need to rinse before adding to aquarium but I did so about 3lbs at a time. And after only a few minutes was able to add to an existing aquarium by using a solo cup to transport it to the bottom and spread it out over my existing gravel with no noticeable change in water clarity. Yes a few stray grains floated around for a few hours but the water remained clear and I was never concerned about harm to the fish. In the end does what it’s supposed to do at reasonable price and looks good doing it ## Features - Aquarium Safe Material: 100% natural composition ensures safety for all aquatic life - Beneficial Bacteria Support: Promotes good bacteria growth because of its large surface area - Visual Contrast: Contrasts well with a planted tank to enhance the appearance of your aquarium - Premium Quartz Composition: Natural quartz gravel sparkles underwater due to light reflecting facets, creating an attractive substrate - Fine Grain Size: 1-2mm particle size provides optimal coverage and plant anchoring in aquariums, fish tanks and terrariums - FINE-GRAINED TEXTURE: Graded to 1–2 mm, Diamond Black falls between sand and traditional pebble gravel for a fine, natural-looking substrate. ## Technical Specifications | Specification | Value | |---------------|-------| | Customer Reviews | 4.5 out of 5 stars 2,534 Reviews | ## Images ![Aqua Natural Aquarium Substrate, Diamond Black Fine Gravel, 10lb - Image 1](https://m.media-amazon.com/images/I/714Ra42cUIL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ A Nice Fine Gravel. *by R***B on June 30, 2026* Looks exactly as it should. It needed a good rinsing but that was expected. Black enough for me. Don't care about sparkles. Some reds and browns give it some contrast. This works for me. ### ⭐⭐⭐⭐⭐ Does what it’s supposed to and like good I. The process *by D***T on January 29, 2026* Perfect consistency for Cory’s slight coarser than a true sand but close. Color is a true black with “sparkling “ crystal dispersed throughout. I did need to rinse before adding to aquarium but I did so about 3lbs at a time. And after only a few minutes was able to add to an existing aquarium by using a solo cup to transport it to the bottom and spread it out over my existing gravel with no noticeable change in water clarity. Yes a few stray grains floated around for a few hours but the water remained clear and I was never concerned about harm to the fish. In the end does what it’s supposed to do at reasonable price and looks good doing it ### ⭐⭐⭐⭐⭐ Very very fine - almost like sand - beautiful! *by S***T on November 22, 2024* I ordered this to add a “sediment” layer for my aquatic plants, and to give a different landscape for my betta Tatsu. I rinsed and soaked them in a bucket overnight to get all the debris out and peace of mind that it’s clean; definitely helped with the cloudiness prior to adding. I added a thin layer across the pea gravel I already have; it was plenty of material for my 10 gallon tank. If used alone with no other substrate/rocks, you’d probably need 2 bags of this for a 10 gal. My pet peeves but doesn’t totally kill the vibe: 1. They don’t sparkle under water at all ☹️ 2. If you have a foam filter like mine that sits at the bottom, these quart rocks are as small as sand and my filter sucked them up and clogged it. I will be getting a top flow filter instead, so not too annoying. 3. I will update once I do a complete tank clean to share how difficult it is to clean with how small they are - by the looks of it, it’ll be a challenge. Wish they were larger size! ## Frequently Bought Together - Aqua Natural Diamond Black 10lb, Premium Gravel and Substrate for Aquariums, Fish Tanks and terrariums, 1-2mm - Aqua Natural Sugar White Sand 10lb Substrate for aquascaping, Aquariums, vivariums and terrariums - majoywoo Natural Coral Driftwood for Aquarium Decor Fish Tank Decorations, Assorted Driftwood Branch 6-10" 3 Pcs, Reptile Decor… --- ## 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/270779964-aqua-natural-aquarium-substrate-diamond-black-fine-gravel-10lb](https://www.desertcart.tn/products/270779964-aqua-natural-aquarium-substrate-diamond-black-fine-gravel-10lb) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-09-23*