Hi guys i need your help please. I have a 60ltr Hailea fish tank. Haven't had to change the light in it until now. Have taken the bulb out and have been trying to search what sort i need but haven't had much luck. The numbers on the tube are PL -24W and on the end part where the four pins are has 9C21R. Are you able to help me? Thank you.. Will take the bulb in next week to the pet shop but thought i would ask here first. :fshi: