depends on the type of fish you keep. if you are doing salt water, live plants or another type that requires alot of lighting , that might be fine. but otherwise, you'll be blinding your fish. i got a 150 ex-reef tank that im now using for african cichlids. it came with a single 72" strip and 2-36" strip lights. i used the single 72" for a while, then replaced it with a single 48" and now i use a single 36" strip light. my frontosa like low lighting. so consider the type of fish you plan on getting and then buy your lights.