Goldfish will eat algae, so if you have plenty growing in the winter, don't
worry about feeding them, they will keep it mowed and it is very
digestible. ~ jan
See my ponds thru the seasons and/or my filter design:
http://users.owt.com/jjspond/
~Keep 'em Defrosted~
Tri-Cities, WA Zone 7a
To e-mail see website