a cylindrical case of cardboard, metal, etc. containing the charge and primer, and usually the projectile, for a firearm. any of various small containers, holding a supply of material for a larger device into which it is inserted: an ink cartridge for a pen, a toner cartridge for a desktop printer. a protected roll of camera film.
Green Hair Algae is caused by excess Dissolved Organic Carbons or DOCâs in the water. The most common reasons for having too many DOCâs include overfeeding, lack of filtration and the use of tap or well water for water changes or freshwater top off.
1 Loss of sulfur causes hair to harden and lose weight. This is why, for the majority of hair coloring, the developer is maintained at 30% volume or less.  Ammonia -- This alkaline allows for lightening by acting as a catalyst when the permanent hair color comes together with the peroxide.