There's no such thing as a showable CTPK, they don't meet the standards. You can show PKs or CTs.
If you're wanting your fish to have 180 degree spread you need to get yourself a HMPK, this one will not give you such results and the edges of the caudal are very rounded.
Anyway, best of luck. Spawning is easy... getting the fry to grow nicely is the challenge. Be sure you read up a lot before putting these two together. If you need cultures let me know, I can easily send you some microworms in the mail.