Hello KYwonderer, and welcome.
If your looking for an aerator for shallow water there's a great little linear pump from Aquarium Specialty. I just purchased one ,and put it into my trout pond. It's the EcoPlus AIR 5, for $69.95.
It puts out 3.11 CFM, at 4.2 PSI. I have it set on a timer to run from 10pm to 6am so that it can help cool the pond. I'll also use it in the winter to keep a hole in the ice.
Take a look it might be something you can use.
