to all of this. I want to start on a saltwater tank[obviously haha] so i can get the cycle going and eventually get an octopus, amongst other saltwater creatures=]. The problem is i still do not know all the information i should as to what i fully need to get started. Obviously..a 55 gallon, or larger, tank and a chiller possibly, definetly not a heater. thats all i know and it definetly is not much. what else would be wise to get? also...Do serpent stars and Octopus' get along?