Kohaku PlatyPlaty fish are a popular livebearer that is very hardy with an ability to adapt to most water conditions in a peaceful community aquarium. The Kohaku variety is a new strain with a high contrast red and white color, also commonly referred to as Santa Clause platy. Fish Size Guide: The 'Maximum Size' outlined below is the length this fish can reach as a full grown adult. For the actual size please use the select menu above. Discus. ae prefers younger