+1 to the above.
The return pump is one of the most important pieces of equipment we have, so having a backup is a very smart thing to do. Even if you have a high end pump like a Abyzz or Red Dragon, a cheap Jabao will still keep your livestock alive. It makes it easier to do maintenance, too. Just hook up your backup pump when you need to clean the main one.
If you have a different brand of backup pump, I’d also advise making sure you have plumbing fittings ready to go and/or using a union to connect your pump to the return plumbing. That makes swapping pumps out about as painless as possible.