thomasina
Aquarium Advice Freak
I have a 20g high tank. I want to replace the fluorescent blub. I measured the old one glass end to glass end and thought it was an 18 inch. Ordered it, and its an inch to short. How do you, and what do measure to get the right bulb? end of the glass or to the end of the two little metal thingies?
(mechanically challenge here)
(mechanically challenge here)