Very nice Uhuru! I have always been envious of your collection.
On the subject of continuous feeders, here's something I recently put together:
It is also a reactor to keep the food in continuous suspension. I decided to go with a magnetic stirrer instead of a pump in the hopes that it will not need as much cleaning. I added an Iceprobe chiller in order to keep the food cold in the reactor. It keeps the food in the high 30's. I haven't set it going yet as I'm waiting on one part, the o-ring gasket to keep it well sealed.