I was just gifted a used freshwater cannister filter (https://www.chewy.com/eheim-classic...DgiHhnj4pVqmW4MTrTX5tcIDV3yYdokRoCl6MQAvD_BwE) that I want to use for my 29 gallon saltwater tank.
I read that I should run it in a bucket of water with a bleach solution, but that seems aggressive. Any suggestions? Any suggestions on filter media?
I read that I should run it in a bucket of water with a bleach solution, but that seems aggressive. Any suggestions? Any suggestions on filter media?