Which Tang can i keep together in my 130 gal?

[fishoholic]

Salfin or scopas not both as they will mostly likely fight together and the same goes for powder brown or blue, having both will likely cause fighting.

Other then that, it's what you prefer. Also (as you mentioned) introducing the tangs at the same time seems to help. I've always been a big fan of naso tangs I have a blonde naso now that I'm glad I bought. I've also always liked the looks of chocolate/mimic tangs.

For about 8 months in a 120g (the tank was too small for all of them so I upgraded to a 230g) I kept a salfin, yellow, hippo/regal, and a lavender tang together with no problems.