im not cleaning the filters, theyre just kind of new. havnt touched them since i set the 55 up about a month n a half ago. the filter that i had before wasnt efficient for the 55, didnt really have much bacteria on the cartidges anyways.. only a tiny bit of the kind that converts ammo to nitrite. they were in a 20 before, and when i transfered them to the 55, the ammonia didnt add up quick enough to feed the bacteria im guessing, so the BB died.
i think its necessary to vac during a fishy cycle to keep ammo levels down, but idk. i shouldnt have done a fishy cycle in the first place, but i did. and i think vacuuming the gravel probably makes it take a while longer for the BB to establish.. but i think its something that needs to be done.
maybe im wrong though.
ammo hasnt even spiked yet. i really need to get my hands on some established filter media.. lol it would solve all of my O and I's problems.