Dymax Pro-Lite 12pcs/box

• For freshwater and saltwater aquarium and pond use

• Helps remove ammonia, nitrite and nitrate

• Suitable for trickle, canister, sump and top filters

• Highly penetrative porous structure

• Provide primitive living environment for micro organisms

• Box of 12, each block 150mm x 5mm x 15mm hole

• 1 Box treats up to 1000L