Canester filters sitting for a week. Not running

[Richards Aquarium]

Is my good material still alive in canester filters they have been sitting full of water for a week not running. Can I just run them as is ?

 

[Garf]

Is my good material still alive in canester filters they have been sitting full of water for a week not running. Can I just run them as is ?

Have you noticed any problems without the canister running? Assuming not, so do you still feel the need to get it going again?