The great thing about a tray system wormery is that a: It's off the floor so very unlikely to be attacked by rodents and B: Worms compost waste as you add it so they really help to neutralise the odours. We have had no problems with rodents with Urbalive or other tray system worm composters.
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Our composting worms are mixture of species (mainly reds and dendras) selected for their composting ability
The Urbalive Worm Composter is a home wormery kit that can be used indoors or outdoors for composting kitchen waste with the red worms. The perfect wormery for households, classrooms or offices.