Size isn't everything!! Lol
and yes more than likely it would have eaten the clowns. Now a large maroon, prob not. Angels, tangs, large clowns, hawk fish, ect would wrk best
Pj I believe are better in groups. Dotty back its iffy if it would mess w the fire. I have a royal gramma and it leaves my fire alone. Also have a purple pseudo and its on and off w my other fire
A high end led will work. You will need fairly high light out put bc of the tank height. All though you stack your rock high closer to the top for corals