Scientific Name: Iriatherina werneri
Ease of Care: Easy
Approximate Arrival Size: Small: 1 inch; Large 2 inches
Approximate Full Size: 2 inches
Native Region: New Guinea and Australia
This small, peaceful rainbow is excellent for a community tank that needs more active fish added to it. These fish are so peaceful that they could be threatened by any fish that may have a tendency to nip fins. This fish prefers very small food and will do well on frozen Cyclops and daphnia, as well as other frozen foods such as vitamin enriched brine shrimp. While the Threadfin rainbow can be convinced to eat flake food eventually, this would not be its preferred food of choice for full time feeding.