First of all, according to various people, you may want to reconsider keeping your catfish and pond fish together. I posted a link below - or you can do a search yourself on the subject. In our pond in Upstate NY (similar in zone to you), I remove all my tropical plants in early October. We cut back our hardy water lilies which are planted directly in the pond and drop to the bottom the other hardy plants. Our pond is 3 feet deep and approx. 3,000 gallons so the fish overwinter in the pond. I don't know what you should do with a pond that small. We purchased a plastic 100 gallon tub at Country Max for our tropical plants, and I think that would work well for your fish if you decide to bring them indoors. You would have to add a pump or air stone for aeration and something for filtration. My husband altered the "plug" with a faucet and we can drain it pretty easily with a garden hose into our basement sewer come spring. Here is a link that might be useful: catfish in a pond

looking for these for trade or for postage. i have white allium gets the size of a golf ball and blooms about august or I will pay postage thanks

I have a mature blooming hardy lily, yellow in color that is ready for dividing (it has outgrown my waterpond) If interested let me know! Im looking to trade for corkscrew rush and/or water hyacinth. Have a beautiful day!

Looking for either or for 2 ponds I have. I don't have much to trade...could offer some hostas. But would be more than glad to paypal you your shipping costs. Thanks!!!!