Broken arm on 29 gallon biocube

[DizziDezi2]

The arm is broken on my biocube- I tried to screw it back together but i cant seem to get the pieces back in the proper order. Help please! :debi:

 

[petere1989]

picture? would help

 

[Godsmack00]

Broken arm?????? Is it for the hood??

 

[TundraGuy]

Need pix to give suggestions.