Bloomz now allows you to control if Parents can post to your class, comment on posts, add albums, etc., please follow these simple steps  - 

• Click on your class in the left menu 
• Click Settings icon on the top of the class page 
• Click Edit Settings
• Click Permissions
• Click on the Can Parents Post to Class 
• Choose one of the options 
  • No 
  • Yes with Moderation 
  • Yes without Moderation 
• Click Done