How long ago did you see these? Back on 12/2/23 I was out there and saw what I thought could have easily been a sacred Fiji Yellow Leather. They had four of them. I bought one on speculation for $80. I've been lucky so far and not put it under any blue lighting. It is now the same shape and size of two real Fiji Yellow Leather grown out frags I overpaid for last August. The SF one also has a yellow stem. Unfortunately the two real ones were under bluish light in my frag tank, and have greened out. They're now under a whiter light with very little blue - I hope they regress to the yellow color they should be.Somethingfishy in Northampton Pa has some. The only thing is, unless you have lighting more towards the 10K range they will not show yellow. If you run more blue they brown out.