Aquarium gravel is a common substrate used in aquariums, terrariums, and even ponds. It's typically made of small rocks, often pea-sized or slightly larger, and comes in a variety of colors and sizes. It's often chosen for its aesthetic appeal, ability to support beneficial bacteria growth, and affordability.
Key Features of Aquarium Gravel:
Aesthetic Value:
Gravel adds texture and visual interest to the aquarium, creating a natural look.
Substrate for Beneficial Bacteria:
The gravel provides a surface area for beneficial bacteria to colonize, aiding in the nitrogen cycle and water filtration.