Rasboras are good looking, friendly fish for almost any community tank. These fish are pretty hardy fish that will accept a large scope of water parameters. They also are amazing schooling fish and should always be kept in groups. They generally don't get too large and are peaceful if they are in a school. A lone rasbora may be more aggressive because its alone. They will flourish if they are kept with peaceful fish and a lot of hiding spaces. They are fast and good swimmers that can handle a strong current.