The leaves and bark of catappa have been widely used in aquariums in Asian countries for a long time already. Owners and breeders of various fish and animals such as fighting fish, discus, shrimp, crawfish and pecostomus use the leaves and bark for the treatment of bacterial ailments, and also to heal injuries of fish, such as bites or transportation wounds. The risk of wound infections is tremendously decreased when our catappa leaves and catappa bark pieces are being used.
The effect of catappa bark is similar to that of catappa leaves (Catappa Leaves), but considerably stronger.
The comprised humic acid and tanning agents strengthen the mucous membranes of the fish and make it difficult for bacterial pathogens to permeate this protection. Likewise, the bark pieces are conducive to the reproduction and breeding of your fish. On the one hand, they promote the mating disposition of your fish, on the other they reduce fungi spawn. Even the growth of blue algae (cyanobacteria) will be inhibited by the compounds. It is remarkable, too, that the bacteria useful to the aquarium are verifiably not impaired.
When transporting fish, it is strongly recommended to a add a small piece of catappa bark or catappa leaves to the water used. This decreases the susceptibility and stress significantly which the animals experience from the high concentrations of bacteria.
You may as well condition your fresh water with our catappa bark pieces before you conduct a water change. This helps reduce stress for you fish.
By releasing humic acids and tanning agents, catappa bark creates a natural surrounding and increases the vitality and well-being of your aquarium inhabitants.
It is good to know that the retrieval of the bark, no tree is being harmed nor perished.

Background information
20 g
Usage:
Put a piece of bark directly into the aquarium. One piece of catappa bark is sufficient for approx. 100 litres of water. The bark will sink to the bottom of the aquarium in a little while.