Hi Alex1110
Welcome to the forum!
Fishkeeping is a wonderful hobby which will never get boring. even if you do it your entire life. There is always something new to learn or a new fish to look for. It's great fun that can be shared with the entire family too. I'm sure the research you are doing now will get you off to a fine start!
It sounds like what you have in mind is called a "Peaceful Community Tank." If you use that term everyone will know what kind of fish you are looking for.
A sad but true fact about the hobby is that many of the lfs (local fish stores) are staffed with people who actually know little about the fish they are selling. It will be well worth your while if you seek out the independently owned stores that specialize in fish. Here you will be more likely to find experienced fishkeepers who will go out of their way to be helpful. They will usually have a better variety of fish too and will often special order merchandise you might need.
Female gouramis are much less likely to be aggressive than males and if you like them, that's something to consider. One or two females can be very nice in a community tank. Just be sure you can tell the difference before you buy them. These fish are air breathers and spend a lot of time near the top of the tank.
Corydoras are excellent fish and should be kept in schools. I recommend either the bronze or albino C. aeneus to start with. While there might be more colorful corys, these are the most popular because they are so active and interesting. They can be found everywhere. Because they are the same species, three of the albino and three of the bronze would be good to start. These fish will add interest to the bottom of the tank.
Platies and guppies are colorful fish that are easy to keep and swim mostly in the center of the tank. These, and various tetras will fill out your population.
There are other fish too that will work well in your tank, provided you have the space, but the ones I've mentioned are good to give you the feel of the hobby.
Here's one more term you will see on the forum: MTS or Multiple Tank Syndrome. It's what many of us get once we have had success keeping out first tank and start seeing all the other beautiful fish on the market.
Good luck with your new hobby!
