I have a 55 gallon tank. I have 1 fire eel who is about 7-8 inches long. I also have a peacock eel that i do not intend to keep much longer. I am wondering if my fire eel will live peacefully with a tiretrack eel. I have read that when they get bigger, fire eels tend to be more aggressive to other types of eels. I am new to this forum; any help is much appreciated. Thank you.