Catappa bark differs from Catappa leave as the bark will immediately sink to the bottom of the tank. It will gradually release nutrients for shrimps and fish. In addition, it serves and habitats for shrimps. The barks will be soften if left soaking in water for over 5 days, which can be shrimp food sources.
*** Very good for SHRIMP : Many Shrimp Breeders use Catappa Bark to control PH water , It is a very effective product for them. ***
Each bag contains 20 grams of bark