Ceramic filter tube

*Made of quartz sand(SiO2), stable in chemical,ideal living enviroment for nitrifying bacteria.

*Porous structure and large specific surface area allow beneficial bacteria to multiply, resolve hydrogen nitride,nitrous acid and other harmful chemical substances,decrease moss,algae and germs to strengthen the immunity of the fish, promote the ecological balance and create good water quality.

*Suitable for fresh water aquariums,seawater aquariums and other biological filtration systems.