Tetra Air Stones aquariums ) per 300 L (75

) per 300 L (75 gallons) for ammonia

The special active ingredient will be selectively absorbed by algae and inhibits their ability to do photosynthesis

Juwel Carbax uses fully activated charcoal grains rather than activating only the outside surface of the grain

or 1 capful

Tetra Air Stones aquariums ) per 300 L (75Tetra Air Stones Tetra Air Stones are used for optimum oxygen supply in aquariums through fine beaded and uniform air discharge. Fine pored Air Stones for optimum oxygen supply in all aquariums. Fine beaded and uniform discharge of air Full use of pump performance due to low pressure resistance durable high quality production Ideal in combination with Tetra APS Air Pumps