tooth,
It is my honest opinion that any type of shark is better suited to a species only. Meaning, you should NOT keep any other type of fish with them. At least not in captivity.
Think about it, sharks are pretty much at the top of the food chain in the ocean... and EVERY shark I have seen has been a solitary specimen... or as a couple.
Also, the angel would be the black sheep of the crew. Sure they're big, tough fella's... but the Angel is a lot like Arnold Schwarzenegger... he's big and tough, but requires much more luxurious and pampered living conditions than say a vagrant biker, or something, which is what the trigger, lion, etcetc would be in your tank. Do you really see old Arnie' with a group of hog riders? I sure dont

.
Namely , as stated the water conditions would just be too unstable. Personally, I just dont like Tuskfish and panther groupers...8) but that is just me..
I think the dragon moray, clown trigger, & lion would be excellent additions to a 305Gl... the clown trigger and dragon moray are very exotic fish, and dont need much company as any one of the two is a showpiece of ANY tank. You may want more fish than 3, but trust me, the list you had origionally was pushing it. By keeping the fish load low, you're minimizing your chances of a fatal error, your fish will be happier due to all the extra space, and if one day your dealer gets in the REALLY REALLY cool and exotic fish that you just HAVE TO HAVE in your aquarium... guess what... you'll be able to have it! Do you know why? Because you were smart and didnt throw as many fish as safely possible into your aquarium at the beginning.

Sorry for the rambling!
Zack
[ November 13, 2001: Message edited by: zackt ]