The Naked Micro Rasbora or Sawbwa Resplendens are a stunning Rasbora with pale blue bodies and reddish orange faces and fins. They make a great addition to any nano tank. They are best kept in groups of at least 6 fish. It is a schooling species by nature and do better if kept in a group of 20-30 specimens. Instead of a large number of them, you could have like sized and temperament fish to make them feel more comfortable.