--- product_id: 270779964 title: "Diamond Black 10lb, Premium Gravel and Substrate for Aquariums, Fish Tanks and terrariums, 1-2mm" brand: "aqua natural" price: "1960187₫" currency: VND in_stock: true reviews_count: 13 category: "Aqua Natural" url: https://www.desertcart.vn/products/270779964-diamond-black-10lb-premium-gravel-and-substrate-for-aquariums-fish store_origin: VN region: Vietnam --- # Perfect contrast for aquatic plants Large surface area boosts beneficial bacteria 1-2mm premium natural quartz Diamond Black 10lb, Premium Gravel and Substrate for Aquariums, Fish Tanks and terrariums, 1-2mm **Brand:** aqua natural **Price:** 1960187₫ **Availability:** ✅ In Stock ## Summary > 🖤 Turn your aquarium into a sleek, sparkling aquatic masterpiece! ## Quick Answers - **What is this?** Diamond Black 10lb, Premium Gravel and Substrate for Aquariums, Fish Tanks and terrariums, 1-2mm by aqua natural - **How much does it cost?** 1960187₫ with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/270779964-diamond-black-10lb-premium-gravel-and-substrate-for-aquariums-fish) ## 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 - • **Effortless Maintenance:** Rinse lightly before use to keep water crystal clear and your ecosystem balanced. - • **Plant-Perfect Contrast:** Showcase your aquatic plants with a sleek, dark backdrop that makes greens pop. - • **Sparkling Natural Quartz:** Elevate your tank’s aesthetic with shimmering black substrate that dazzles underwater. - • **Aquarium-Safe & Versatile:** 100% natural, safe for all life stages—ideal for fish tanks and terrariums alike. - • **Bacteria-Friendly Surface:** Maximize tank health by promoting essential biofilm growth on every grain. ## Overview Aqua Natural Diamond Black is a premium 10lb bag of 1-2mm natural quartz gravel designed to enhance aquarium aesthetics while supporting beneficial bacteria growth. Its large surface area promotes a healthy tank environment, and its deep black color provides a striking contrast to aquatic plants. Safe for all life stages, this substrate is easy to rinse and maintain, 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: 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 Review: Very very fine - almost like sand - beautiful! - 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! ## Features - Aquarium Safe - 100% natural - Promotes good bacteria growth because of its large surface area - Contrasts well with a planted tank - Great for Aquatic Plants ## Technical Specifications | Specification | Value | |---------------|-------| | Customer Reviews | 4.5 out of 5 stars 2,366 Reviews | ## Images ![Diamond Black 10lb, Premium Gravel and Substrate for Aquariums, Fish Tanks and terrariums, 1-2mm - Image 1](https://m.media-amazon.com/images/I/714Ra42cUIL.jpg) ![Diamond Black 10lb, Premium Gravel and Substrate for Aquariums, Fish Tanks and terrariums, 1-2mm - Image 2](https://m.media-amazon.com/images/I/71YW9Ajw33L.jpg) ![Diamond Black 10lb, Premium Gravel and Substrate for Aquariums, Fish Tanks and terrariums, 1-2mm - Image 3](https://m.media-amazon.com/images/I/71GnrdhokHL.jpg) ![Diamond Black 10lb, Premium Gravel and Substrate for Aquariums, Fish Tanks and terrariums, 1-2mm - Image 4](https://m.media-amazon.com/images/I/A1-0NnrGDwL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ 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! ### ⭐⭐⭐⭐⭐ Great quality *by C***T on February 20, 2026* Very beautiful! My turtle tank i had completely cleaned the day before i got it. And since i didnt want to do another water change..i just turned off my filter and took my turtle out for an hour, and the water barely got cloudy afterwards and fully cleared back up in a couple hours. Very pleased! ## 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.vn/products/270779964-diamond-black-10lb-premium-gravel-and-substrate-for-aquariums-fish](https://www.desertcart.vn/products/270779964-diamond-black-10lb-premium-gravel-and-substrate-for-aquariums-fish) --- *Product available on Desertcart Vietnam* *Store origin: VN* *Last updated: 2026-05-12*