The only other suggestion is to try to extend the rockwork/caves up higher. Although when I've done this, I noticed that the more submissive fish tended to get pushed up to the less "prime" real estate near the top. Still, it helps. I wish there was a fish like you are requesting.
In my tank, I use Red Empress, Acei, and Protmelus to try to fill the middle to upper void. I know I am mispelling this, but I have some Protomelus Tanzania that hang out near the top a lot and are very active. ( Sadly, I only have females, hope to get some males at the next OCA convention. ) Red Empresses also work for me.
In my tank, I use Red Empress, Acei, and Protmelus to try to fill the middle to upper void. I know I am mispelling this, but I have some Protomelus Tanzania that hang out near the top a lot and are very active. ( Sadly, I only have females, hope to get some males at the next OCA convention. ) Red Empresses also work for me.