It sounds like the filter needs cleaned. You have had a huge overload of organic matter and it all winds up in the filter until it simply can't hold any more. Once the overload has been reduced you won't need to clean it as often. Love the frog. Sandy

The foam is usually caused by DOC [Dissolved Organic Compounds].
The link below refers to DOC in aquariums, but it is the same process that is happening in your pond.
As your new filter kicks in the foam should dissipate.
"Horton"

Here is a link that might be useful: DOC

Thank you both. I need to have the guy come back. He thought I could go a lot longer, maybe a month, before the first cleaning. I guess not!

Cute frog! So you have a person come out and clean the filters? Don't you want to enjoy the full ponding experience? lol

Regards,
Lisa

LOL, Lisa, I need him only to show me what a good cleaning entails. Once I know, I will then be able to get the Full Ponding Experience from then on!