Well, no but they are a lot better with them. For your fish, not for show, if you have gold fish, if you don't put a light in they will go silver. This is because of the lack of light.
if you have a tropical fish or a filtered tank than yes you do need a light
All tropical fish need light, as they tend to live near the surface around coral reefs. It is no different if the fish is kept in a tropical fish tank. Too much light duration will result in excessive algae growth in a fish tank. Therefore, light duration should be regulated to keep algae growth to a minimum.
I'm not sure you could say they 'like' light. They certainly need light in order to behave normally, eat, reproduce, etc.
It is absolutely ok to have a lamp by the betta fish tank, just make sure its not on 24/7, as fish need dark and light periods to function normally.
TheType of fish that you put in the tank and what they need to survive
The energy for the plants in a fish tank is supplied by Light.
They need a tank fish food
No, not really, you need mostly water and a few rocks out of the water to bathe on, a big tank depending on how many turtles you keep, because they get BIGGER than you think they do! you also need a light and no other smaller fish with it.
Yes and no they need sun light to grow but don't give them to much or it will rewind your tank
It is instinct for fish to hide from danger. It is normal for some fish to hide from the light.
NO they need air circulated through the water, they need filtration, even if the tank has cycled. The only thing you don't need to provide is light unless you have them in a room that doesn't have natural light or little of it.
Turn the light off or get a smarter fish.