Aqua Natural Substrates
All Aqua Natural gravel or substrates are 100% natural, sustainably sourced, triple washed and kiln dried. Our meticulously graded gravels and sands are the perfect natural substrates for any aquarium including planted tanks. Our high quality products create natural beauty combined with large surface areas for beneficial bacteria colonies and easy cleaning.
Nitrifying Bacteria
Pack contains bio activated live nitrifying bacteria to either use as a primary substrate or mix with substrate for a healthy aquarium. Contains a patented blend of live nitrosomas and nitrobacter bacteria which break down and convert harmful ammonia into less harmful nitrite and nitrate.
| Product Type | Diamond Black |
|---|---|
| Source | 100% natural, sustainably sourced |
| Processing | Triple washed and kiln dried |
| Bacteria Content | Live nitrosomas and nitrobacter |
| Best Use | Planted tanks, general aquarium substrates |
FAQ
What makes Diamond Black substrate different from other types?
Diamond Black is a naturally graded substrate with a unique texture and color that provides excellent surface area for beneficial bacteria. It is triple washed and kiln dried to ensure cleanliness and stability in the aquarium environment.
Does the substrate contain live bacteria?
Yes, the pack includes bio-activated live nitrifying bacteria, specifically a patented blend of nitrosomas and nitrobacter, which help convert ammonia into nitrite and nitrate.
Can I mix Diamond Black with other substrates?
Yes, Diamond Black can be used as a primary substrate or mixed with other substrates to enhance bacterial colonization and improve tank stability.

Wanda Gibson –
The Diamond Black substrate looks great in my planted tank. It’s easy to work with and the bacteria in the pack helped establish a stable cycle quickly. No fish deaths or ammonia spikes since adding it.
Ella McGrath –
I mixed it with some sand for better root anchoring. The color is consistent and the surface holds nutrients well. My plants have grown stronger since using it.
Sarah North –
The triple washing and kiln drying process is evident in the cleanliness. No dust or debris after installation. The bacteria blend worked well in a new tank setup.
Stephanie Chapman –
It’s a solid choice for both planted and general tanks. The texture is fine enough to support plant roots but not too fine to clog the filter.