Flasher Wrasse question

[Eynonreefer]

How many Paracheilinus filamentosus can I add to a 90 gal? I have to order them and wont know how many males I'll be getting. Also would this be the same for Paracheilinus mccoskeri. Currently I have only 2 Pseudanthias squamipinnis, and 1Cirrhilabrus exquisitus, and 1 Cirrhilabrus cyanopleura. I was thinking 2 of each at the same time.

 

[Rockadile]

I currently have a combination of 8 flasher and fairy wrasse in my 90 and looking for 2 more to finish off my fish list.