Hi Guys 
 
I have a problem in which I was hoping you can help me, 
I bought a Atman  DB100  High Class Aquarium Lamp 
25w Variable Lenght Casing for various kinds of fluorescent lights. 
Suitable for a 100cm Tank. 
At the moment it will only fit in 60cm, I am wanting to put 2 36' tubes in could you tell me how you adjust so it will fit it in please, if you know. 
  
Thanks 
Kind Regards 
Dianne