How high should my light be above my aquarium?

Do your best to completely darken the room where the aquarium is located, except for the aquarium lighting. Raise the light well above the aquarium, perhaps as much as 24 inches. Pay attention to the “edge” of the light on the floor. It should be fairly obvious with most lights, due to reflector or optic performance.

How do I make my aquarium brighter?

Choose incandescent or fluorescent lighting

Fluorescents can also be used with any type of aquarium. Although they give off a white light that’s brighter than that of incandescent bulbs, many fish tank owners prefer them because they’re perfect for any live plants in the aquarium.

Do fish like light in their tank?

Lighting also provides energy and oxygen to ensure the overall well-being of your pets, as well as growth for photosynthetic plants and organisms. Light is essential for the healthy growth for fish, plants, corals and bacteria…all life in your aqurium’s environment.

Does aquarium light bother fish?

Aquarium fish do not need light and it is best that you turn it off during the night. Leaving the light on can cause stress to fish as they need a period of darkness to sleep. Too much light will cause algae to rapidly grow and make your tank look dirty. So the short answer is no, do not leave your lights on.

How high should I prime be above water?

How high do I need to mount my Aquaillumination lights above the water? Answer: To achive the best light spread and to help prevent water spashing on the lights we recommend the bottom of the units are between 12″ (31cm) and 15″ (38cm) from the surface of the water.

How do I know if my aquarium plants are getting too much light?

If your plants get too much light, they won’t be able to use them up quickly enough. As a result, algae feed off the excess nutrients and CO2, multiplying at an alarmingly rapid rate. We’ve already explained how a small amount of algae benefits aquariums. Too much, however, and the tank can go cloudy.

How bright should a fish tank light be?

If you have chosen nothing but “Easy” plants, 10-20 lumen (0.25 to 0.5 watts) per litre is adequate. For “Medium” plants, we recommend 20-40 lumen (0.5 to 1 watts) per litre, while “Advanced” plants require more than 40 lumens (1 watt) per litre.

Do fish like blue light?

Blue LED lighting creates a calming ambiance in your aquarium. Many fish enthusiasts say the blue light serves best as a transition light between light and darkness. So, you can use the light in the evenings to help your less curious fish to come out of the hiding spots as blue light mimics the moonlight.

Why do my fish freak out when I turn on the light?

Well, that’s exactly how your fish feel each time you suddenly turn on the light. Drastic changes in light levels can startle pretty much everyone, including the fish. Hiding is their defensive reflex triggered by switching from dark to light too suddenly. If you leave the light on, the fish will come out eventually.

What color light is best for fish?


This is our go-to spectrum and we HIGHLY recommend this spectrum for most freshwater aquariums. Nothing brings out the vivid colors and enhances your tank like a full, rich RGB (Red,Green,Blue) spectrum of light. It not only makes your fish pop in color, it also won’t promote algae growth.

Is it OK for fish to be in the dark?

Fish do not need light at night. A period of darkness is necessary for the fish to sleep. Also, leaving the lights on all night could cause algae to rapidly grow and take over your aquarium.

Will fish sleep with light on?

Keep in mind that not all fish will like the same light and dark periods. Fish will sleep and having a slow increase in light is better than a sudden switch. Some species will like to “sleep in” and hide out in their caves for awhile until their eyes adjust.

Should I turn off the bubbles in my fish tank at night?

What is this? So, if you have a really large fish tank and not too many inhabitants, sure, it is probably fine to turn the pump off at night. However, if you have a lot of fish in a relatively small space, there might not be enough oxygen present to last the night, so in this case you should leave the air pump on.

Do fishes sleep at night?

While fish do not sleep in the same way that land mammals sleep, most fish do rest. Research shows that fish may reduce their activity and metabolism while remaining alert to danger. Some fish float in place, some wedge themselves into a secure spot in the mud or coral, and some even locate a suitable nest.

What is the blue aquarium light for?

What Does Blue Light Do in an Aquarium? These blue lights have been popular through the years by most aquarium owners. They are commonly called moonlight, but actually, the primary purpose of this light is to let you see your nocturnal fish at night.

Does algae mean too much light?

Light is a major factor in algae growth because these organisms engage in the process of photosynthesis in order to grow and reproduce. The simple fact is that many people keep their lights on for too long – an excess of light will provide an abundance of energy for algae to grow.

Do LED lights cause more algae in an aquarium?

Contrary to what you may have been told, LED lights do not cause algae growth any more than other aquarium lighting options. Some LED lights also have adjustable light options to dim or brighten the light according to your fish’s needs.

How many hours light for aquarium plants?

Low-light aquarium plants will usually require between eight and ten hours of light per day, while medium-light aquarium plants generally need around ten hours. High-light plants require between ten and twelve hours of light per day.

Can you have too much light in aquarium?

Too much light causes more algae growth. Reduce the time the aquarium lights are on to eight hours, or a bit less if necessary, to help reduce the algae growth.

Are LED lights good for fish?

Fish are not as reliant on light as plants. In general, aquarium owners can use incandescent, fluorescent, or LED lights for fish but should be aware of the heat issues that incandescent lights cause.

Can I leave my aquarium light on 24 7?

Can I leave my aquarium light on 24/7? You should never keep your aquarium lights on for 24/7. There are are several reasons you should not do so but the most important is it will cause algae growth in your tank. And you can spend literally weeks if not months to clean out algae from your aquarium.

What does green light in fish tank do?

An excess of green light within your aquarium is one of the most common causes of nuisance algae development, and can quickly lead to a murky, visually unappealing tank.

What does red light in fish tank do?

Using only a little red light will slow algae growth. The less you use, the slower algae can grow. Unfortunately, restricting the amount of red light will also dull the reds in your aquarium. Red highlights in your aquarium will show off all the subtle hues of green in your plants.

Which light is best for aquarium?

Your best lighting options for freshwater aquariums are standard fluorescent bulbs, compact fluorescent bulbs, metal halide lights, and LED lights. You want to avoid incandescent bulbs as they are suitable only for small aquariums and can give off too much heat.

What do fish do when the lights are off?

Fish need light about 8 to 12 hours of light, depending on the types of fish in your aquarium. They need light to go about their business each day, and a lack of it can cause them to become lethargic. This can result in them eating less food and possibly becoming sick.

What do fish do when dark?

Fish living in the deep sea manage to navigate in complete darkness. It’s not strictly ‘seeing’ but fish have rows of pressure-sensitive organs running down each side of their body called the lateral line, which allows them to sense nearby animals from the pressure changes in the water.

Do fishes get scared in the dark?

Fish don’t like the dark because when there is no light to see, they dart around the tank, colliding with the walls, ornaments and can even become tangled in the plants. Fish need light to determine whether it is night or day, and they’re scared of the sudden switch from darkness to light.