what other type of Tang for my 150

[naesco]

Hands down the powder brown (japonica). Don't confuse it with the similar looking tang with no orange on it. Had mine for years
The orange shoulder grow to be rather drab looking and mean.
The powder blue tends to do well than die for no reason and take the other fish with it
The anchilles are iffy. Some make it most don't. They need lots of varied food and highly oxygenated water.
The or