Cath, I have hornwort and anacharis in the pond now also, my pond is partially covered with ice. The fish are layering right now because it's cold. I have a plant that I trimmed and sunk to the bottom because it's a marginal and the fish like it to hide in too. I don't think you are doomed to lose your fish because you didn't winterize like you normally do. You can still trim and sink marginals as long as the water is open
![Smiley :)](https://www.worldwidewatergardeners.org/forum/Smileys/smilies_smf/smiley.gif)
(you probably don't wanna hear that, huh?) . There have been years when I don't get the marginals sunk either, didn't hurt the fish but it wasn't so good on the marginals...
![whistle {:-P;;](https://www.worldwidewatergardeners.org/forum/Smileys/smilies_smf/whistle.gif)
It's been down in the teens here at night and my fish and plants look fine in the pond, but this is just the beginning. I don't have koi to worry about. Just remember to keep a hole open and some air to them and come spring they will probably be fine.
![Wink ;)](https://www.worldwidewatergardeners.org/forum/Smileys/smilies_smf/wink.gif)
I don't think these companies are busy at all, but I think they let a lot of their staff go this time of year and are really shorthanded. Some of them may not even be open all week long or on the weekends.