hey everyone! i'm looking to set up what i think is a 3.5 gallon tank for a single betta fish. I've read some conflicting information about whether it's best to cycle the tank or just do complete water changes regularly. what would you reccomend? also, should i have a small filter or no? i've never kept betta fish before (although i do have a happy community tank) and any advice would be appreciated!
A sponge filter would be adequate for seeding bacteria when you are cycling a tank. It's best not to remove everything in the tank at one time when cleaning or you'll lose your beneficial bacteria. Also, don't squeeze the sponge out too often or too thoroughly.