couple of dwarf gourami questions

[Marion]

Hi Everyone
I have a question regarding Dwarf gouramies. Me and by husband purchased 2 dwarf gouramies that are blue with the red but we have noticed that the one doesn't have those Vental Fins, does is mean it's still a dwarf gourami or not?And also in this week we bought 2 fish also suppose to be a type of gouramie it something like a yellow german its yellow with the blue dots over the body but it doesn't have those vental fins are they gouramis ?

 

[TekFish]

Without pictures, it's going to be difficult to answer these questions, unfortunately.