20W Solar Fountain Pump, 350GPH Submersible Solar Pond Pump with Adjustable Flow & 4 Nozzles, Anti-Clog Barrier Bag for Bird Bath, Outdoor Pond, Garden Water Features, Pool

I found something like this which is solar and about 350 GPH. You can start out with one of them, and if you like it, then get another one so you'll have 700 GPH. https://a.co/d/01ICUyXz