How to choose a lamp in the aquarium
Modern lighting can solve the problem of aquarium lighting of any type, regardless of the type of its inhabitants. In addition to decorative functions, the lamp in the aquarium set the tone for the normal life of aquatic plants, animals and micro-organisms, providing processing accumulated in the water-soluble organic substances.
Instruction how to choose a lamp in the aquarium
In most cases, lighting aquarium used fluorescent lamps. Incandescent lamps are now rarely installed, as most of their energy is converted into heat. Fluorescent lamps also are economical, are long enough to provide a good flow of light. Only downside is the need to use them to connect to the network or electronic ballast choke.
From the standpoint of the holder of the aquarium fluorescent lamps are the two main indicators: color and power. The first reflects the color spectrum lamps, the latter is expressed in watts. Power lights are on 56, 40, 30, 25, 20 (18) 8 and 15 watts. Each of the indicators corresponds to a certain power lamp length: 120, 105, 90, 75, 60, 45, 20 cm, respectively. Therefore, going for the purchase of the lighting system, measure the length of the aquarium.
Calculate the power corresponding to your aquarium. For containers with a water column height of 45 cm or less take the lamp with a power of 0.5 watts per liter. At the same time you get an average illuminance, which is suitable for most plants. If the aquarium is higher than 50 cm, double the wattage needed.
It should also be noted that the aquarium gets far not all of the light emitted from the lamp - part goes up and to the side. To minimize the loss of light, give preference to lamps with a special reflector, saves up to 95% of light.
Note the color of the lamp. Chlorophyll absorbs light unevenly in red-orange region of the spectrum (660 nm), in the violet-blue (470 nm), and in the first half intensified. Therefore, plants need the red and blue (smaller) light. Light with other spectral characteristics may not like plants and stimulate their growth.
On sale at the present time there are various power white fluorescent lamps. Lamp white light (LB) in its spectrum coincides with the chlorophyll absorption region, for that is commonly used by hobbyists. Fluorescent light has a lot of the blue area, so it is not suitable for the aquarium.
It is worth noting a few varieties and of the specialized lamps for aquariums. Lamps marked with Aqua-Glo have a range of specially selected for maximum overlap with the absorption spectrum of chlorophyll. Its light colors well on fish yellow, orange, red, blue and dark blue colors.
Sun-Glo is similar to the spectrum of white light the lamp, but it is more balanced. Light Source Power-Glo in its spectrum comprises a portion of blue light. This powerful light system can be used in aquariums without plants or saltwater aquariums. If you have a plant that the lamp should be combined with Aqua- or Flora-Glo, specially designed for aquariums with plants.