Hello all. This summer I'm going to be away for a number of week-long trips.
I suspect my neighbors are getting tired of me asking them to feed my koi (9
fish in 3000 gal with bio & UV filters). I've looked at some koi feeders on
the web but they all seem so expensive. Has anyone figured out how to make
one? I'm thinking a pendulum-activated type would be easiest. Any advice or
plans would be very much appreciated.

~ Gary in Massachusetts