Was in Rogers last weekend and stopped by Worlds Underwater. I got this fella and a Lubboks fairy but he jumped out of my bucket. I could have sworn they called him a sliver belly but I'm thinking he's yellow-flanked. I've been interested in fairy wrasses for a while and I've noticed that on RC folks post mixed reviews with proactive treatment of them (dave, I noticed that you say you've done well with Prazi and wrasses). I may just let him in the chromis hang out for a few weeks with no treatments. I changed my mind regarding doing TTM right out of the gate with this guy especially since I lost the Lubbok's day 1 with jumping out.
Definitely a yellow flanked, very nice! I've had great luck with TTM but since all wrasses are jumpers I used DIY screen covers and never lost one to jumping. I have not had issues with Prazi in any wrasse so far including my 'fragile' Potter's leopard wrasse. Maybe I'm just lucky.