LOL i use the exact same bulbs ! i have a hanging flourescent fixture to illuminate the tank and whle getting the fixture im like HEY 7 BUCKS FOR AN AQUARIUM BULB HOLY CRAP and they have a nice puple glow which im a fan ofiloveoscars702;3417003; said:50/50 is the best ive ever used. right now im using "aquarium bulbs" made by philips. i got em at home depot for 10 bucks haha