Hello Mangoguayaba - welcome to the communty!
Questions are great! If you would like to learn more, there is an article for fish keeping which is great for info on taking care of a tank(s).
It is linked in my signature below. (Below the snail pic)
Also just copy and paste your question to a new thread in the "Getting Started"
Freshwater & Brackish - Getting Started - Aquarium Advice - Aquarium Forum Community
Then post the thread link back in this thread so people can find your question!
FW & SW
Favorite tank right now - 72G Bowfront Wadai Tetra, Cardinal Tetras, Ghost Glass Cat Kryptopterus bicirrhis and Clown Loach Cory haven
New to FW fish? First tank in a long time or EVER??? Need some info on keeping fish?
Start here - Aquarium Advice Article