How long should a reef light be?
between 9 and 12 hours
Essentially, the ideal time to have your lights on full is between 9 and 12 hours. Providing ramp up and ramp down time if possible. This gives the coral enough time (roughly 9 hours) to grow and reward from the photosynthesis.
How much light does a reef need?
For saltwater reef tanks containing corals, lights should be on for 9-12 hours every day. Corals need light to produce food. An algae in their tissue called Zooxanthellae processes light into energy and without enough light, the coral would die. Fish do not require light to survive.
How many watts of light do I need for a 20 gallon reef tank?
Usually, you will need 2 to 5 watts of lighting (not LEDs) per gallon for freshwater aquariums.
How many watts of light do corals need?
In order to keep soft coral alive you will need special, high-output fluorescent lighting like T5 fluorescents. The general guideline is that coral needs at least 5 watts per gallon.
Do corals like Bluelight?
Efficient photosynthesis requires not only adequate light intensity but also the correct spectrum of light. Terrestrial plants, like those found in our garden, favor colors in the yellow, orange, and red range while corals favor colors in the blue spectrum.
Can a reef tank have too much light?
well in my experience, too much light or light shock tends to bleach corals right away. too little light is a lot slower, where the specimen/s brown out first sometimes then bleach.
Do corals prefer blue light?
Terrestrial plants, like those found in our garden, favor colors in the yellow, orange, and red range while corals favor colors in the blue spectrum. As water depth increases, the reds, oranges, and yellows are gradually filtered out, leaving more blue light.
How do you tell if my corals are getting enough light?
Well-Known Member. Keep a look out for a coral color being pale vs bleached as well. A coral that goes pale very quickly after making a lighting adjustment is normally from to much light. A coral that does it slowly can be from to little light, to high or low a temp or to low nutrients.