do molly fish need light?
605742
Mollies do not require light directly. For a fish-only aquarium featuring mollies, 1 watt of lighting power per gallon of aquarium volume is usually plenty to see your fish. ... As tropical fish, you should give them a photoperiod -- the amount of time the lights are on per day -- of 8 to 12 hours.
837827
Planktonic marine life (and the mantas' diet) is attracted to light at night. Almost every evening of the year underwater lights are set up shortly after sunset to attract the plankton and manta rays are drawn to the lit up areas to filter-feed the plankton from the water.
630710
Since mushrooms do not contain chlorophyll they do not require light or photosynthesis to grow. ... Mushrooms do need a dim light to form fruit bodies, but only requires a few hours a day for successful fruiting. When growing indoors, indirect sunlight or a florescent lamp can suffice.
50555
Betta fish typically need 8 to 12 hours of light, and 12 to 16 of darkness, so make turning off your tank light a pre-bedtime habit. If your Betta fish has too much light, it can become overly stimulated and stressed. ... Too much darkness isn't good for your betta either.
362649
All things being equal, a balance of a good lighting source, variable/oscillating current, periodic light feeding 2 at the most 3 times a week in a well kept and monitored system will yield enough growth to keep anyone happy. Some reefers feel the need to load their system up everyday with food.
53545
Low-pressure sodium lights produce the greatest amount of light per watt of energy consumed. High-pressure lights are slightly less efficient. The efficacy in lumens per watt for low-pressure sodium lights is 60 to 150; for high-pressure lights it is 50 to 140.
614211
They are very easy to keep, low to medium light. They eat like pigs. Coral frenzy, or mysis, rods food, etc.
337103
Just right. Remember, it is a large polyp stony coral after all and you don't want the water flow to be so high (like with SPS) that it would rip the flesh. They are photosynthetic, too, and appreciate moderately high PAR lighting but will tolerate lighting on the lower end of moderate, as well.
944100
They should not be kept in small bowls, a small tank of at least 5 lit is bare minimum. These fish are found in small water bodies with low oxygen level in nature, hence they have evolved a labyrinth organ which allows them to breathe from air. This adaptation allows them to live in small volume of water.
1437177
Many fish species feed more actively at night, but for anglers who fly fish for trout at night, brown trout are at the top of the hit list. If you're up for a new adventure and aren't too afraid of the dark, these tips will help you get started.
452701
For this reason, many people believe that they need to provide a light during the nighttime, which is not true at all. Its not a requirement and guinea pigs do perfectly well without them. Guinea pigs naturally respond to their environment and are able to keep themselves entertained whether it's light or dark.
1400017
Lights Required All vessels including motorboats, sailboats, canoes, kayaks, punts, rowboats, rubber rafts, or other vessels when not at dock must have and exhibit at least one bright light, lantern or flashlight visible all around the horizon from sunset to sunrise in all weather and during restricted visibility.
1383137
As long as your computer screen isn't right up against the tank and you aren't playing in the dark I don't think it will cause any more harm to your fish's eyes than other lighting in your house. However, if you're pretty close to the tank the quick movements could startle and stress your fish.
1059566
Comments: The black ghost knife is nocturnal so seeing them all the time is not a common thing. They are also blind and so rely on their sensitive electrical sense to find food and find their way around the tank.
399853
Black ghost knife fish are nocturnal. They are a weakly electric fish which use an electric organ and receptors distributed over the length of their body in order to locate insect larvae.
1047974
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. They simply need some time to adjust.
353790
As it is with humans, fish also tend to react to unpleasant conditions. Too much light, drastic changes between light and dark, sudden movements… it can all stress them out. Providing the proper amount of light and darkness will help the fish feel comfortable and stay healthy.