The only way to ensure long term success in that tank, IMO, is to get rid of some of the livestock. Trade them into an LFS or something. But the tank is far too overstocked
1 Humu Humu Trigger about 6 inches big, a Sohal Tang about 4 in, 2 Yellow Tangs 4 in, a 3 in Panther Grouper, a 6 in Lion, and a harmless 7 in Porcupine Puffer
Does this include what you added or what you had before you added more?
A standard 90g is a 4 foot tank. For aggressives I would say a stocking list might include the humu, the puffer and maybe a tang and lion. But triggers and lions can be tricky. All those fish get very large, and many are messy dirty eaters. I hope the filtration is top of the line.
Adding 5 fish at once, depending on the tank, filtration, age, etc...and most importantly the fish...is often a disaster waiting to happen. But even if not, I would strongly discourage you from continuing with that many fish, if you really want to succeed and keep healthy fish that is.
As an aside, I do not care for people calling anyone else an idiot. I do not feel that people should jump on others, though I do wish that people would take sound advice when it comes to caring for fish. Most people here are very passionate about things when they see possible harm to fish, and want to prevent mistakes they may have made from happening again. That is why they spend time here, answering many posts. I would like to thank carshark for explaining his point of view in this thread, and where his passion comes from, just to calm things down.