Previously was very into bettas and had many tanks myself. Then I took a little break but now i am very interested in getting a 5 gallon and just having 1 betta. I know you must wait a couple of days after you set up your tank before putting your betta in it but when i was watching videos on youtube, they said that you should add "bacteria" because it will help the fish. Is this true? I mean for bettas? Will this really help them in their new home? Thanks for your help and time!