Thast is my favorite shark!!!! I recently aclimated one into my salt, and I am in the middle of aclimating two more!!! they are so cool, and talk about endurance. I dumped the water from the other Columbian I aclimated (5 gall tank) and started 2 new babies. I looked at the tank tonight!............................Forgot to turn the heater back on!!! was 64 degrees......brrrrrrrrrrrrrrrrrr I put the heater on, and all is good. Those fish are VERY hearty!!! My favorite shark. Even from salt. salt sharks are so hard to keep, these guys are awsome!!! and yes, they are BIG eaters