budman, do you have your lights in your fuge on during the day? If you alternate DT lights and fuge lights, you can do this. It's a great way to get pods, etc into your dt.
Go buy a small stick on LED light and put it on a timer to go on about 2 hours after your fuge light goes off (i.e. your normal fuge light is off). put it in a corner of the fuge, right by the glass. Also, get the smallest pump you can, that will make it up to your dt, and have it on the same timer as the the LED. Put the inlet of the pump right next to the light. What will happen is that critters in your fuge will be attracted to the LED and get sucked into your dt. You don't need it on for very long.
Hope this helps.
