pearl gromies and glowlight tetras?

Pearl Gouramis are probably the most peaceful of all the gourami species. They shouldn't bother your Glowlights as long as the tetras are bigger than 3/4" and the Pearls aren't full grown(4-5"). Otherwise, I'd say go for it.
 
Except that Pearl Gouramis are extremely shy. With all those active tetras swimming from one side of the tank to another, the Pearl Gourami might not be social for a while. Slower moving fish would probably better tank mates for them.
 
I have a pair of peals in my Amazon biotope tank. I know, pearls aren't from the Amazon, but they are among my most favourite fish, so I added them in with my Cardinals and rummy nose and Angelfish. They get along well with all the inhabitants. Pearls are so peaceful and accomodating. I think you'll find your pearls leaving the glowlights alone.
 
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