Can someone please tell me what kind of fish it is? Talk about his acquired habits and how to maintain them?

This is a branch of the red swordfish. Most red swordfish are bright red, but this one is orange. Red swordfish is relatively easy to raise. Like other tropical fish, the water temperature should not be too low. Generally, 20 to 30 degrees is more suitable. There is nothing else to pay attention to. It is easy to raise. You can feed it small red worms. If the red worms are too big, you can feed it water fleas. This kind of fish can be kept together with traffic lights, moonlight, and Mickey. They have similar habits and won't fight, so they'll be fine. However, the other types of fish are smaller. If you take the overall situation into consideration, don’t feed red worms, just feed water fleas.