i had a saltwater tank before it was a 30 gallons with a pir of maroon clowns
now i have 90 gallons and i want to keep a tang/surgeonfish or a trigger of somekind
i love those large angel fish but my tank is not big enough for one i would want to have a bluefaced angel or queen angel
so im thinking about one of those fish:
tang:
blue tang or purple tang
triggerfish:
clown or huma huma triggerfish
do you think that 90 gallons will be enough to house one of those fish??? im thinking more about the tangs as they are invert safe so i could add like some skunk shrimps or starfish or something else or
instead all of those fish get only 1 eel like a tiger snake/spotted eel

yes. 90 gallons is more than enough to house a tang you could maybe put your clowns in there too. a tangs minimum tank size is 75gallon your tang will have life of luksery in your 90gallon good luck.