Not sure if there is such a thing as lighting overkill. But would love your opinions. I am now looking at the 30" Coralife Lunar Aqualight T5 HO is a high performance, energy efficient lighting fixture that is ideal for saltwater and marine aquariums. This sleek, high output fixture produces just the right balance of light for fish and corals with a combination of 2 - 10,000K daylight bulbs, 2 actinic blue bulbs and 2 LED moonlights. The lunar LEDs are directional and can be adjusted to give off a unique moon glow accent lighting throughout the tank. It features cooling fans with quick disconnect ballasts, LED transformer, individual power cords for the control of each bulb, an acrylic splash guard, 2 adjustable mounting brackets. 4x31watt.
My tank is a 20 gallon long dimensions are 12"x12"x30".My concern is my tank is only 1 ft deep, too much light? if theres such a thing for sw tanks.