Aqua One Nitrate/Nitrite Pad is a tightly woven chemical filter pad which helps to absorb Nitrite (NO2) and Nitrate (NO3). Nitrate can cause kidney, liver and eye problems for fish, as well as suppress their appetite and prevent their gills from absorbing oxygen from the water. The use of a Nitrate/Nitrite pad can help reduce the frequency of water changes.
Note: Not suitable for Marine aquariums
10458 NITRITE NITRATE PAD SELF CUT FILTER PAD 25.4 X 45.7CM