No. Many fish in the dark still grow, but it would be good to give light once in a while.
Yes and no they need sun light to grow but don't give them to much or it will rewind your tank
no they do not need light they need sleep.
yes all plant need light to grow
Plants need light to grow at all. Except fungi.
a bright type of light rose need to grow well
Seeds do not need light to germinate, but they do need light to grow and develop properly. Light is essential for photosynthesis, the process by which plants make their own food. Without light, plants cannot produce the energy they need to grow. In the absence of light, seeds may germinate but will not grow well and may become weak and leggy.
Unless they are blind cave fish, which have no eyes, fish need light. You want a light om an aquarium so you can see the fish to best advantage. It does not need to be a special aquarium light, if a room is light enough for you to move around in, it is light enough for the fish, regardless of temperature. A weird thing may happen if the light comes from the side. Fish orientate themselves to light more than gravity. With strong side lighting they will swim tilted, sometimes almost completely on there sides.
no it dosent
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.
Yes, seedlings need light to germinate and grow successfully. Light is essential for the process of photosynthesis, which is how plants produce energy to grow. Without sufficient light, seedlings may become weak and leggy, or fail to grow altogether.
yes
No need. Algea feeds from light. Just leave your aquarium light on longer and it will grow pretty quickly. Just be sure to turn your light off some to offer your fish a normal day/night cycle.