Question about how to setup a canister for the first time.

[Rakunio]

Fluval Canister specifically(can imagine it's the same concept though)

 

[Chicxulub]

A few questions to be able to help you better:

What kind of filter is it? (FX5, 306, 405, etc; these are all different Fluval models)

What media do you have?

Did you buy it new or used?

Please answer these questions. Without this information, any answer I give you would be a guess.

 

[Gill Blue]

click the aquatic bar.