Silver Sharks Inlove?

[josh-sven]

just yesterday my sharks started rubbing up against eachother, and chasing eachother alot. well one chases the other. does this mean anything or are is it normal?

 

[paul_219]

What size is your tank? What do u have other then the silver shark in your tank?

 

[josh-sven]

i have all the fish listed in my profile. And my tank is 6 feet wide and i think 4ft high or 3 and a half feet.