So I have a 16g bowfront aquarium that is setup as a FOWLR
tank right now. I have a fluval 205 canister running on it right now. I have recently been reading that canister can become nitrate factories. I don't exactly understand why this is. Is it because debris builds up on the sponges and rots? I have heard it is fine to run a canister if you clean it out very regularly(which is not something I wish to do as I have quite a few tanks I have to maintain as it is)
I am thinking of switching to an aquaclear 30 instead as it will be much easier to maintain. It should be able to cycle my water roughly 9 times per hour. I am curious as to what media I should be running. I don't run a skimmer on this tank and do weekly 5 gallon water changes but my nitrates still seem to be in the 20ppm range every week. Any insight as to what I can do to make this system more efficient and easier to deal with will be greatly appreciated.
My current setup is: 20lbs of live rock
1 False percula
1 Firefish Goby
1 Scooter Blenny