I have a few floss filters in the canister and they are doing their job. I do see very fine particles of dirt in the tank, so I pack in the floss filter in more to try to capture all of this? I sadly loss 4 of the flame tetras I bought from Petco hours within introducing them into the tank. The rest of the fish, 2 guppies, 5 neon tetras, a cory catfish are doing fine. The water is still cloudy, I put in some bio zorb as well to help with the clearing of the water. I have been testing like crazy and there is no ammonia, no nitrite, but the nitrate is in the 40ppm range. I placed in a box of Biomax into the canister. The plants seem to be doing fine. but the nitrate level worries me.