HOBBY ZEOLITH 500G Scraper so they reach the fish

so they reach the fish quickly

Its submersible design is crafted from shatter-resistant glass and offers superior performance with superior accuracy

dual surface algae pad for glass and acrylic

Biochemical filtration

DIRECTIONS:Use 1/2-1 capful (2

HOBBY ZEOLITH 500G Scraper so they reach the fishZeolith is a solid natural stone which contains many pores, cavities and channels. Hobby Zeolith works in an adsorptive manner, i. e. environmental toxins and decayed products are directly attracted and retained by the system of cavities through strong electrostatic fields (e. g. up to 90% of ammonia). Zeolith has a huge internal surface area. Approx. 10 gram corresponds to the size of 4 football pitches. The cavities are 4 millionths of a millimetre