– Newly formulated white substrate
– Manufactured under strictly controlled conditions
– Resource conservation as no
natural resources
– Chemical structure matches natural coral sand
– Fossil-free
– Suitable for all saltwater aquariums
– A few rinses are sufficient before use

Tonga Pearls are made from a completely new and unique calcareous material manufactured under strictly controlled conditions. Their composition and crystalline structure mimic natural coral sand. Thanks to their texture and bright white appearance, Tonga Pearls are ideal as a substrate in saltwater aquariums.

Tonga Pearls are also ideal for invertebrates such as sea anemones, rose apple worms, tubeworms, and wrasses, as the animals can easily burrow into them. This substrate is also chewed by gobies. Tonga Pearls' crystalline structure matches the calcareous skeleton of corals, thus forming the basis of a perfectly functioning marine aquarium. Tonga Pearls are not a fossil material. They are not quarried or extracted from the sea, therefore they conserve natural resources and are free of impurities.