Lucky or not Im keeping an eye on this topic, Ive been wanting to go without a filter for some time now but just didnt have the you know whats to do it.
I have done this as well. I did it VERY slowly. My canister had 4 sponges (fluvial 304). I had a feeling the sponges were producing nitrates. I noticed this, when I washed the sponges in FW
. I noticed the algae didn't come back as quick. I then, had a HUGH cyano
outbreak. I took out two sponges. Waited about 5 hours to see if there was a spike. No spike. I waited about a week (noticed the cyano
quit spreading, but was still there). Then I removed the other two sponges, waited, tested and with in 4.5 days, the cyano
was gone. I probably have about 50-60LBs (maybe a little more or less) in my 55G.