Instructions
Identify whether you have small polyped stony (SPS) or large polyped stony (LPS) coral in the aquarium. These are easily identified by the size of the exterior nodules or raised areas of growth, on the coral. If the nodules are the size of a pencil eraser, they are the SPS variety and if they are larger than a pencil eraser they are the LPS variety.
Purchase an LED light that has an adjustable light dial so that you can gradually adapt the coral to the new light source.
Install the LED light on top of the aquarium using the manufacturer's instructions. You can purchase a light that sits on top of the aquarium, one that clips onto the side or a hanging version. If you have SPS coral, position the light no more than 2 feet above the water. If you have LPS coral, position the LED light no more than 3 feet above the water.
Turn the LED light to approximately 65 percent of capacity or the comparable number setting on the dial. Turn the light on and allow it to remain on for at least 10 to 12 hours per day to simulate natural sunlight patterns.
Increase the brightness of the LED light by 5 percent each day until the light eventually burns at full strength.
Using LED Lighting in an Aquarium for Coral Growth
Light emitting diode (LED) lighting is one of the newer forms of aquarium lighting. Although it is the most expensive form of aquarium light, it offers some advantages. LED lights do not produce as much heat, thus they do not overheat the water. In addition, LED lights use less energy and reduce your electricity costs. LED lights can be used to successfully grow coral in an aquarium as long as the aquarium is shallow.