Is my aquarium too full?

I have a 130L (34 gallons for you Americans) tank with 3 dwarf honey gourami, 4 bronze corydoras catfish, 10 neon tetras and 7 guppies. Is it over stocked?
Update: I really want to get two more female guppies since I'm on a 4 male to 3 female ratio but if the tank is too full already I wont.
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