From my 2-3 months of keeping the LH(Luo Han), I find that it is an intelligent fish and a very playful one too. It looks at you as if checking to see your response with it's sparkling red eyes rolling to your direction . It learns quickly and each LH has it's own distinct character! Some are easily frightened but some are not. A shy LH can be trained to become bold and friendly. It is amazing to see how they interact with their keeper! They come in a wide array of colours and the colours changes with their moods... . The pearl variety of the LH is truly beautiful. The nuchal prominence makes the LH a unique and exciting fish to keep. A small bulge on the head makes it cute to look at and a large one makes it look grand.