opaline and blue gouramis

[Zushi]

What is the difference between an opaline and a blue gourami? At my local pet store, they look almost identical.

[kufan]

They are the same creature, except Blue gourami's are usually referred to as three spot gourami's, as they have 3 spots on them if you look at them. Here is some more info on them.

http://www.peteducation.com/article.cfm?cls=16&cat=1957&articleid=2576