The photo above shows the Parsley feeder that I built for my fish about ten years ago.
I've made dozens of these for friends and local customers, and there has been no reason to change the design. It works very well and my fish have probably eaten 2-3 heads of Parsley a week for the last twelve years. In our food stores, Parsley is about three heads for a dollar. That is a very inexpensive way to give your fish a source of vegetative matter without their gobbling up all of your plants. Parsley is like Catnip to fish. My fish clean off a whole bunch of Parsley in about an hour.

Because I get more and more requests for these every year, I decided to offer them on our website. What I am selling here is a slab of rock with a hole drilled thru it, plus a wooden rod, rubber bands and two tubes of epoxy glue to attach the rod to the stone.
It takes just a few minutes to assemble the Parsley stand.

Buy some Parsley, wrap the rubber bands tightly around the stems, then push the bunch down over the rod and drop the stand into your pond. The fish will enjoy the treat. I'm making the stone in the standard size of 8" x 4" x 1-1/2" which fits into a standard shipping box. This works fine for fish up to about 12" long. If your fish are much larger, or very aggressive, contact us for details about the larger 12" x 12" x 1-1/2" size feeder stand.