Large marine coral for sale *Benefits of dried coral for the aquarium* *1. Raises water alkalinity pH and KH* - Coral is made of calcium carbonate, it dissolves slowly and raises the pH - *Beneficial if*: Tap water is acidic or your KH is zero - *For guppies*: Stabilizes pH and prevents sudden drops that kill fish *2. Natural calcium source* - Releases calcium into the water 24 hours a day *3. Home for beneficial bacteria* - Coral has many pores where bacteria that clean ammonia from the water live - Acts as a natural biological filter *4. Natural decoration* - Looks better than plastic and gives the tank a marine look Original dried marine coral Size: Approximately 15 cm Weight: Heavy and stable, does not float Cleanliness: Needs washing Important: Suitable for African Cichlid and saltwater tanks only Raises pH and KH - not suitable for shrimp, tetras, and plants Price: 50 Riyals