I was considering getting a mated pair of Banggai Cardinals (Pterapogon kauderni) for my 65 gallon reef tank. Current fishes are Purple Dottyback (Pseudochromis porphyreus), Fairy Wrasse (Cirrhilabrus lineatus) and Gold Stripe Clownfish (Premnas biaculeatus). Would the Cardinals be a good choice? Are there any (reef safe) fish that cannot be kept with them? Any tips on keeping these fish please, thanks