Spare Return Pump for Red Sea Reefer Max G2+ 300

[hsp]

I purchased a Red Sea Reefer Max G2+ 300, which comes with a ReefRun 5500 Return Pump, which is connected to a ReefRun Controller. After my ReefATO+ gave up (I got a new one from the Red Sea after 6 weeks), I wondered what would happen if my Return pump gave up. Having a spare ReefRun 5500 is not helpful if the controller dies, and buying both to have it sit there seems rather expensive. What do others do? Have a cheaper pump as a spare? I know that some have two pumps running, which will probably not work in my 300 with limited space and fixed plumbing.
Thanks for any suggestions!

 

[exnisstech]

I've been running a jebao DCP 5000 since I started my reefer 300 18 months ago. $80 from Amazon here in the states. I have a new one as backup since they're so cheap. I actually have a DCP 3500 and 15000 on my other tanks with backups on the shelf for those as well. The pumps are pretty much silent. No wifi but I don't need that for a return pump. It has a feed mode button on the controller which is all I need.

 

[hsp]

Thanks again! The jebao DCP 5000 is not available for 220 V in Australia. I got now a Sicce Syncra Silent Series - Syncra Silent 4.0: https://reeftopia.com.au/shop/equipment/pumps/sicce-syncra-silent-series/
Your suggestion really helped me! Thanks!