Orange otos?

While in Hong Kong, I noticed these pale orange fish busily eating algae
like otos. On closer inspection, they looked remarkably like otos in body
shape and size (these were 2-inchers) but were that lovely orange/pink
color. The lady at the fish store said they were otos of some kind ...

Anyone know their species name and whether they may be available here in
the U.S.?

Greg. Tong
San Francisco, CA, USA

"Every infinity is composed of only two halves."