Of course it just depends on the fish you have. Most fresh water tropical fish the temp should be between 78 and 82 degrees. Just make sure you read up on the kind of fish you want before you put them in. Some prefer a warmer temp, some cooler.

About the food, same thing. Depends on the fish. But most do fine with plain dried flake food. Give them some brine shrimp once a week or so, its a nice treat.

With the light, just turn it off at night before you go to bed. Turn it on in the mornings before feeding and that should work!

But like I said, just read up on the fish you want to put in your tank.

The temperature should range from 78 to 80 degrees. tropicl fish can be fed flakes but should be offered a wide variety of live frozen food and others if you expect them to breed. The lighting should be light but not all day though, turn it off during the night-it’s good for the fish and you. Also for your plants, if you have any at all. Just be sure to provide something in the tank that offer the fish shade and a hiding place in case they are shy.

Good Luck!

Depends on the fish. Some low 70′s. Some low 80′s. Probably 75-76 is most common. More important is the temperature doesn’t fluctuate.
Most like 12 hours of dark, 12 hours of light. Do not tuern the lights on if the room is dark. Let the room brighten, then turn the light on later.
Tropical staple flakes, spirulina, bloodworms, fish need a variety of foods. I use two kinds of flake. Tetramin and O.S.I.