Remora is 17" they max out around 30" in captivity but get up to 40" in the wild, the tank is big enough for it(at the moment) its a 215g. Within the next few months Ill be setting up a shark pond which he will be going into. Remora's are the Arowana of the saltwater world in which they can turn very sharply and need a tank about 3x their length and 1x their length in width