Pump for a smallish pond (Rackheath NR13)

Hello freeglers!
Unfortunately the pump in my pond has stopped working. I thought maybe the plug fuse had blown but changing it didn’t solve the problem. My pump has a fountain and an additional outlet for my spitting frog. I can live without the fountain but really need the frog working (because it’s a memorial pond for my daughter and she loved the frog).
I was just wondering if anyone had something suitable that they don’t need anymore, before I start looking in the shops? Thanks ☺️