I have a picture of the media basket in earlier posts.
I've since then removed the Chaeto refugium, I think it was the source of my cyano problem. Initially the Chaeto was growing well. Then after I harvested it a few times, the remaining started to have die-off, and was polluting the tank. After removing the Chaeto the Cyano started going away. I think Chaeto does not work well in a AIO, since there is not sufficient room for it to tumble have have health growth.
Now I only have filter floss, followed by filter media. I still run the Chaeto light as the light+filter floss kinda acts like algae scrubber, and algae is getting removed every time I throw away old floss. I will post another picture of the basket next time I clean it.
Good point about the Jebao powerhead. I placed it on the back for aesthetics, but I never thought about possibility of rust. Since you mentioned it I checked the powerhead, the magnet itself is coated with a plastic coating, and it's further covered by the rubber housing. No rust so far.