I am so excited! After a month of cycling.. I just got my first saltwater fish in almost 10 years!!

YAYYY! He's a beauty of a volitans lion.. I've included a pic I took last night.. he's about 4 inches long. At the moment, he's (very enthusiastically) eating *small*
FW minnows. Of course I know this isn't ideal.. and would like to wean him to silversides ASAP.. how exactly to do this? The lion I had 10 years ago came from the store already weaned to dead food.. so this is new territory for me! Also.. my second fish is probably going to be a Minatus Grouper.. how to independently feed these two??