Yeah Maximus, I don't mean to bag on you but a LOT went wrong.
Firstly, no fish should be in an unheated bowl, period. If you take tank water to fill the bowl, then an hour is okay but after that the water will lose temperature.
Secondly, you cannot give water to your fish straight out of the tap. You either need to add a dechlorinator to the water before you put it in, or add dechlorinator to the tank before putting the water in. The chlorine in the water will kill your fish.
Really, the moral of this story is to have your aquarium ready before you have the fish. Since you have the aquarium ready you will avoid this in the future, I'm sure. A second moral is to always dechlorinate your water, because if they weren't dead before the chlorinated tap water hit them, that definitely could have killed them.
Lastly, you are not cycling your tank before adding the fish. Although you don't have to (it is possible to cycle with fish in the tank, but it hurts the fish and is a lot more work for you), you should do what's called a "fishless cycle" where you establish the "cleaning" bacteria that will keep your aquarium healthy. Look up the nitrogen cycle, and fishless cycling. Maxima provided a link that is very helpful.
Once you get the basics down you can keep nearly any kind of fish without problems
It's a lot to learn but you will soon be able to keep fish that you KNOW are happy and healthy, with no guess work, if you follow our advice. Good luck!
