No I dont really have anything. It's just that 3 tangs and a trigger is wayyy too much for only a 75g. Some people dont even recommend 3 tangs in a 210g tank. You're probably going to have to take 2 or 3 of those fish out in the future.
Also, watch out for the trigger and lionfish if you're keeping corals/inverts. They're both known to eat them.