outdoor pond (real one) questions

[delmargray]

I am normally an aquarium guy, but my father has a nice sized pond in his back yard. It's about 30 feet across but pretty shallow, no more than 4 feet in the middle. It's a happy haven for frogs, toads and even a few turtles (along with Fred and Ethel, our resident ducks).

The problem is the algae and mosquitoes. I remember reading somewhere that comets are hardy as **** and can handle winters. My dad lives just west of Cleveland so the winters are really cold, but he's pretty sure the pond doesn't freeze solid.

My question is will comets survive this far north in a natural pond? What temp can they handle at the low point? And if they can't do this, what are our options for at least an algae eater to knock back some of it so the pond looks aa little prettier?

Thanks in advance!

[gabriestevens]

Actually I am also aquarium guy but I have also indoor pond so I may be solve your problem. You have algae problem so have some shrimps in your pond and for other you have to clean your water.