Hi there are guards on eBay, but I don’t know if they have your make of pump, other than that you could try black filter media around the pump sides with an elastic band.I have used this idea also when I’m doing a weekly maintenance but using white filter floss media around the pump, as all the sediment that gets stirred up gets sucked by the pump and is contained in the media, and then rinsed to use again.
I may try the black mesh (thick kind you use for overflow) and some zip ties. I made guards using black egg crate, but they are big and I don't like the look.