Safely bring the beauty of the aquatic world into your living room with the Chemi-Pure Filter Media from Boyd. Fluctuating pH levels and pollution can be dangerous for fish and aquarium life， but Chemi-Pure helps to keep your tank's pH levels steady and safe. It also works to keep your water clear while helping to filter out phosphates， silicates and more. You may even see less nuisance algae in your habitat and watch your fish enjoy a better appetite! Because this filter media mimics a natural aquatic environment， it encourages a healthier brain and， overall， may promote a happier life for your scaled friends.