Specially designed sintered glass medium, with an enormous surface area of 18,300 sq. ft. per U.S. gallon. This highly-porous rock material promotes biological water purification and eliminates toxic ammonia and nitrite. For saltwater and freshwater use. Suitable for all EHEIM external filters. One liter equivalent to 2 lbs.; two liter equivalent to 4 lbs.
When changing filter material, mix 1/3 of the used medium with new medium to achieve rapid repopulation of bacteria. Substrate may be washed with lukewarm water and be used several times. Before initial use, rinse thoroughly.
Rated 5 out of 5 by 1
reviewer.
Rated 5 out of 5 by alpine Clean water
I had a problem in my fish tank where the water seemed not dirty but just a bit cloudy. I headed over to petsmart and they recommended the eheim ehfisubstrat and let me tell you, it works great!! Within a couple hours i had never seen my tank that clear before, and my fish seem to love it too. Would recommend to all! BUY THIS STUFF IT REALLY WORKS
June 28, 2008
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