Oh no LOL the clown knife was a feeder fish, long gone. Just removed another 2 serpae tetras as feeders, I’m slowly reducing the stocking as mentioned, wanting to add a centrepieceYou don't mention the clown knife fish in your post but it is in the photos? Do you think it is something else?
Not to beat a dead horse but the tank is overstocked and not a mix that is likely to work out in the long term. I do however like your rocks and driftwood.

