Hugo Kamishi Niji Rainbow Mix Aquarium Gravel 2-4mm is the ideal way to decorate and enhance your fish tank, bringing a varied range of colour and interest to your aquarium.

• This gravel is suitable for all types of cold water, tropical and marine aquarium set-ups.
• The gravel also acts as a good rooting medium for live plants.
• Perhaps the most important function that gravel serves is to provide a home for beneficial bacteria . Those bacterial colonies are necessary to eliminate waste produced by the fish, leftover food, and plant debris in the aquarium. If the bacteria don’t have a comfy gravel bed to live in they will find other places, but may not grow in sufficient quantities to keep the aquarium safe for your fish.