my wife surprised me with a zebra eel which is 24 inches long. Does the eel requires to eat every day or every other day. Also the tank that I have is 180 gallon which i am planning on purchasing PVC piping, and covering it up with live rock so he has spaces to hide. will that suffice for him to be happy or am i missing anything else to make the zebra eel feel comfortable in his new environment. also thanks in advance.