Lee, I've also wondered how the koi decimated the water hyacinth, and
how they managed to take such large, round bites out of the bulbous part
of the plant. Then I saw the koi either pinning the plant against the
edge of the pond or with a koi on either side, then they just "slurp"
out a chunk and munch away. When I first saw this damage, I thought it
was caused by raccoons, except there where no teeth marks. Pretty
ingenious fish, eh?
--
Kathy B, zookeeper (OR)
3500gal pond

Lee Brouillet wrote:
Well, I went on an "illegal" harvest this weekend and grabbed a bag of water
hyacinth ...

Now that I have my ill-gotten gains, how do I care for them?

... For something that doesn't have teeth (OK, pharyngeal
don't count), how do they take out those big bites???