Channa bleheri (rainbow snakehead, dwarf species)... i have seen them with colors like yours... darker orange when older though... you will know for sure once it gets bigger!!
i found some info that pointing it as C.gachua,as it was found around still water around waterfall area~~
my baby here nw growing healty in d tank~ ^0^ very aggresive~ even bite my fingers, jumping out frm d water...
small C.striata is orangei n colour~ some smaller fry i found there (but i dint bring bck) was not orange... they r dark brownies/greyish~~~