Savio SpringFlo Biological Filter Media Pondmaster Treating every two weeks is

Treating every two weeks is recommended

5"L x 3"W x 4"H 2lb *35psi is the recommended water pressure

Safe for freshwater and saltwater tanks

PondShock™ must be stored above 40°F

Savio SpringFlo Biological Filter Media Pondmaster Treating every two weeks isSavio Spring Flo Filter Media is the patented media that works even when dirty! Encourages better adhesion and proliferation of bacteria using a special formulation of polypropylene and calcium carbonate. The textured surface is embossed with millions of dimples to rapidly secure and develop beneficial microorganisms. It does not clog and it resists channeling and compaction in up flow or horizontal flow pressure filters. Easy to clean by shaking