[DETAIL] Features: 1. Effectively absorb micro particles and debris 2. For crystal clear aquarium water 3. For freshwater and marine environment 4. Premium quality 5. Highly porous and absorbent to last longer 6. For freshwater and marine environment 7. Eliminates toxic ammonia 8.Reduces stress on fish 9.Ideal for new or heavily populated aquarium Note: Wash before use. This is manual weighing,please accept ±5g,thanks! Package Includes: 1Bag Feedback Your satisfaction and positive feedback is very import to us .Please leave positive feedback and 5 stars if you are satisfied with our items and services.If you believe you have any problems with our items or service,please feel free to contact us first before you leave negative feedback.We will do our best to solve any problem and provide you with the best customer service. Best regard，Thank you！ [ATTRIBUTES] - Hign-concerned Chemical: None - Origin: Mainland China - Type: fish - Hign-concerned Chemical: None - Origin: Mainland China - Type: fish - type1:: Aquarium accessroies - type2:: Bio filter media