1-2cm Galaxy Rasbora. Latin Name: Danio Margaritatus Water quality: 22-24°C, pH 6.5-7.5 Compatability: They make an excellent fish for a community tank of smaller fish given their peaceful nature. Diet: Omnivore, not a picky eater but the fish do require tiny food particles. A varied diet is recommended. You can pulverize flake food and feed it as a powder. Sinking or slow-sinking micropellets are also a good choice. The fish has got a fantastic coloration on its body, the reason why it is one of the most sought tropical fish for aquariums.