How is debris generated?

there are 3 possibilities:

- when a fleet is destroyed (the amount resulted is bases on the owner armour tech level *2 in percentage)
- when a fleet is disbanded (generates 50% the fleet size in debris)
- asteroid belts release 10 to 25 debri per hour until the debris belt depletes (except argos server)
-- also, if the asteroid belt has a Starbase, the debris released is increased by 25 debris per SB level.

Note the difference between Debris and Debris belt. The first one is available to be recycled, the other one need a SB.