In my (limited) experience they are chickens. I only tried them once almost 30 years ago and they didn't make it through QT due to some bad infections they came with.
A. nigripes belongs to the African clade (allardi, omanensis, bicinctus, latifasciatus, chrysogaster, fuscaydatus, chagosensis,...) and not to the "Skunks" as Allen assumed.
Of those I had/have bicinctus, chrysogaster, and nigripes.
The chrysogaster I had as a single around 1980 and I never added other fish out of fear to introduce infections.
The bicinctus were the latest of those and I still have them. They actually show no interest in other fish but their only tank mate is a dottyback. The female is a real pet and a notorious beggar - every time she sees me she has her snout out of the water, demanding to be fed...
But to consider is that anemonefish are particularly aggressive against their "arch enemies", those fish that may steal their eggs (wrasses for example) or may harm their anemones (certain butterflies for example). Even the most peaceful anemonefish may attack those fish viciously without warning, possibly even kill them. Not because they are mean but because that's their job: protect the home and the babies.
So putting a wrasse with them may not have been a good idea...