Types Of Tropical Fishes

Halogen lamps The tungsten filament of incandescent bulbs is here replaced by another metal, which prevents them from turning black. These lamps can be equipped with a rheostat, but they are generally little used by hobbyists. Discharge lamps An electrical discharge between two electrodes vaporizes a gas, such as mercury or sodium vapor […]

Light sources A whole host of light sources, each with its own distinguishing features, is available to aquarists. Incandescent lamps These are what we use from day to day in our homes, but they are absolutely out of the question in aquariums: the quality of light is poor, and this type of bulb […]