I agree on the mandarin and actually I have had one in there for over a month, I have upwards of 50 pounds of lr and also 20 pd ls. my tank is very healthy so far. I was worried about the food supply till I introdeced the live sand, I now have lots of copods for him to eat. I can see them at night with the flashlight. I also have a small scooter blenny that also feeds on them. So far so good they are both looking and acting healthy and happy, always eating. plus I add small 1 pound peices of lr every couple weeks. still have plenty room to work with. i guess the wrass may be cool I may go for the small fish look. But would love a main peice. about the lion,, would it mess with the bottom dwellers? Also seen a cool spotted jawfish I am thinking about.