Quote:
Originally posted by bellusangel3
I have sponge filters in the canister. Once a month I will add a carbon filter but only leave it there for a week and do the same with filter floss. I've been told by some reefers on RC that canister filters are bad for reef aquariums. You say your reef is doing good with a canister filter..now I'm confused.
|
The sponge filter is your problem, it is trying to act as the bio-filter, but your LR and sand are the bio-filter. I dont quite understand the science behind it all, but basically, your sponge filter has converted nitrite to nitrate, and is leaking the nitrates back into the water. Take it out and your problem is solved.
Like I said, I use it for floss and carbon ONLY. this means the canister filter is bascially a giant powerhead which is capable of running carbon. A canister filter is BAD if you leave the bio-media in. Hope this helps