thats news to me, i learn something new everyday, ill keep an eye for that "red throat" looking rhom's at my LFS...rhoms have red bellies.
Itll dissapear with maturity and size though.
Maybe thier still youngins. 6 inches under is where i usually see rhoms with some red on them.
EDIT: Not as much red belly more in the lines of red throat.
maybe hes trying to sucker you in??.....would be nice to tho find out what it really isi have emailed him so waiting for some pics i thought that sanchezis only got around 6 inch tops. surely if he has done this for years he would know whats what i was just curious