Fluval AquaClear 50 Ammonia Remover Insert - 3 pack - 429 g (15 oz) betta Oscar Small

Oscar Small

The gravel will not affect water chemistry or harm your fish

and safe for use in reptile freshwater and saltwater aquariums

Manganous Oxide

Approximately 5 3/4" in diameter and 5 3/4" high

Fluval AquaClear 50 Ammonia Remover Insert - 3 pack - 429 g (15 oz) betta Oscar SmallAmmonia Remover is ideal for new or heavily populated freshwater aquariums. It removes and controls harmful ammonia and nitrite to create a healthy aquatic environment. Controlling ammonia levels is also critical for reducing stress on fish Natural ion exchange (clinoptilolite) chemical filter media Effectively removes and controls toxic ammonia Ideal for new or heavily populated aquariums Reduces fish stress and prevents livestock loss For best