Hard to say because of the size differences. Just like any cichlid, gourami all have individual behaviors . I would rather in my opinion feel more comfortable keeping the same species of gourami.
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Gouramis aren't chiclids? They're a type of labyrinth fish, like betas. I wouldnt mix a dwarf with and honey purley because of size, but on the other you could get two fish that like each other, and will work put perfectly. but you can mix pretty much all different colours and breeds of dwarfs.
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