The rainbow fish was recommended by this blogger http://theplantedtankblog.blogspot.sg/ during our visit to fish farm and I fell in love when the fish dsiplayed its rainbow fins like a proud peacock. Here are photos taken from my tank which speak louder than words to describe its beauty. The shop owner, who is a chinese, called this fish "little sparrow".
It was known that this threadfin fish has very thin throat, I bought baby plankton (near powdery form)
for feed and the fish happily swam around taking in the plankton. On top of which, I also crushed my shrimp's food into very tiny size such that they enjoy whatever foods I threw in that fit into their tiny mouth.