Chamber 1 on both sides has a media caddy. Filter floss goes on top of each. The left side caddy I have chaeto in and I removed the black vinyl from the back of the chamber with a razor to let light come in from a grow light mounted outside the tank.
The right side I run my carbon - I use chemipure blue.
chamber 2 on left side I just have some dry rock rubble in for some extra biological filteration.
chamber 2 on the right side I have the IM skimmer but I don’t really like it. It works ok but is a pain to clean and makes a high pitch noise. I have it on a timer to only run after I’m asleep so i dont have to listen to it.