I have a Marineland Hex 5 aquarium. Is there a fluorescent bulb that will fit in my tank?
Yes there is. The light that comes with it originally is a very low wattage with little UV. There is a special bulb made for aquariums (the light spectrum is more of a blue-white natrual color then the very yellow ones that are sold as long life power compact "regular light bulb shaped" bulbs for your standard lamps. Those made for the regular lamps also sometimes may not fit the socket. Check out the AGA Mini Compact Aquatic Bulb for more information.