repurpose

Hey friends, I have two good ecotech battery backups but don’t use any ecotech pumps. I don’t have any of the wiring. I was wondering if anyone has experience repurposing these for different pumps. I know you can replace the batteries. Can I take them out and buy a controller for them to use on...

I have a tank that was used with copper treatment. Is it possible to clean it out and reuse the glass aquarium and heater for a betta fish? thank you!