Tanganyika Mix Pebble 3-5mm is a popular choice for aquariums, particularly those housing fish native to Lake Tanganyika in Africa.
 
Fish Compatibility: Ensure the size and texture of the gravel are safe for your chosen fish species. Bottom-feeders with barbs or whiskers might benefit from slightly larger gravel.
Aquarium Size: Choose the appropriate amount of gravel based on your tank size to avoid overfilling. A good rule of thumb is 1-2 inches of gravel depth.
Filtration System: Make sure your filter is strong enough to handle the small size of the gravel and maintain good water flow.
Water Parameters: Monitor your water quality parameters, especially pH and hardness, after adding the gravel. While typically inert, some mixes might affect these parameters.