Micron Compact Internal Filter Substrate It contains two forms of

It contains two forms of filtration - the first being a sponge filter that sucks in waste and water and the secondary chamber that houses media for added biological filtration

It includes 1x activated carbon foam pad

NorthFin's Kelp Wafers formula contains easily digestible all natural ingredients with 100% natural colour enhancers

d-calcium pantothenate

Micron Compact Internal Filter Substrate It contains two forms ofSicce's Micron Compact Internal Filter is a submersible nano filter with a dual filtration cartridge including activated carbon and zeolite for efficient chemical filtration and foam for mechanical filtration. There are four different flow rates allowing it to be used in tanks ranging from 2. 5 20 gallons.