i can see the skimmer i there, but unsure of where the filter is located, maybe just how i am looking at the pictures..
I can see a lot of sponge in the sump...how often do you clean these sponges and how do you clean them? Sponges are notorious for building up nitrates on them and require a clean every week in tank water to keep the nitrate level under control...
Niko
I can see a lot of sponge in the sump...how often do you clean these sponges and how do you clean them? Sponges are notorious for building up nitrates on them and require a clean every week in tank water to keep the nitrate level under control...
Niko