DYMAX Natural Black Gravel 4-5mm (2KG)
Dymax Aquarium Gravel is more than just an easy way to achieve a unique look in your tank – it helps to: anchor the ornaments and plants; hides waste and debris; keeps bottom sucking fish happy and even provides some biological filtration. Some species of fish prefer dark or light colour and may attempt to ‘blend in’ with certain shades of gravel. For aquascaping and landscaping purposes: pH neutral. Natural rocks and gravel from mountains; streams and rivers. Provides comforting habitat and shelter for fishes from stress. Small gravel measuring 4-5mm. NATURAL BLACK GRAVEL 2KG. DM207
Product Specifications
| Feature | Detail |
|---|---|
| Color | Black |
| Size | 4-5 mm |
| Weight | 2 kg |
| Origin | Natural rocks from mountains, streams, and rivers |
| PH Level | Neutral |
| Use | Aquarium substrate, aquascaping, fish habitat |
FAQ
Is this gravel safe for all types of fish?
Yes, this natural black gravel is pH neutral and provides a safe habitat for most fish species. It helps anchor plants and ornaments and reduces stress by offering shelter at the bottom of the tank.
Does the gravel affect water chemistry?
No, the gravel is pH neutral and does not alter water chemistry. It is safe for long-term use in aquariums without affecting water parameters.
Is the gravel suitable for planted tanks?
Yes, the gravel helps anchor plants and provides a stable base. Its natural composition supports plant growth and helps hide debris.

Justin Bond –
The black gravel looks great in my tank and the fish seem more active. It holds the plants well and hides the waste nicely. No changes in water pH after a month of use.
Phil Hudson –
I used it for my community tank and the fish are less stressed. The size is perfect for small to medium tanks. It blends well with the dark-colored plants.
Victor McDonald –
Natural look and feels sturdy. The gravel doesn’t break easily and keeps the bottom clean. My betta fish swims around it without any issues.
Evan Russell –
Good value for the size. It’s easy to add and the color matches my tank design. I plan to buy more for my second tank.