its newly bought, maybe due to the new environment, new fish tend to stay in shadow. this tiger shovelnose has already eaten, but just little, i feed it fish, but it never goes after those fish but instead wait till they are in front of its mouth, and they 'may' eat it. so i think its kinda strange as i think they are active during daytime, it lives in a community tank, it just stay all the time in shadow and not really moving, and wait till completely dark and come out and swim a bit, does anyone know the case and suggest any problems arising?
My brother saved my knife fish from my TSNxRTC who had that poor little guy sucked down like a fruit roll-up even though they were the same length.