Best tank mate for Koran Angel and yellow tangs

[krzjaz2022]

What tank mates are not going to get any bigger than Koran Angel, as big yes, but no bigger. Have yellow tangs in tank also.
(This is the 150 gallon tank.)

 

[kharmaguru]

What tank mates are not going to get any bigger than Koran Angel, as big yes, but no bigger. Have yellow tangs in tank also.
(This is the 150 gallon tank.)

I'm not a fish guy but a quick search tells me a Koran Angel adult is a 15" fish, so I'd say you have lots of "not bigger" choices. Also recommends 250 gallon minimum.

Koran Angelfish: Saltwater Aquarium Fish for Marine Aquariums

 

[Reefing102]

Also what kind of tank are you going for? Fish only, SPS reef, mixed reef?