Ok so I bought a tigrinus to live in the tank with my shovelnose cats I got. It's a bit smaller so I was concerned it may become a pricy late night snack but I think it's ok so far. Question I've got is what to expect as far as behavior. It swam around all night last night. Today it just hung out in one of the big caves in the tank but when the lights went off it started doing sprints across the tank. It's been going back and forth all night like this. Normal? Don't think it ate anything yet either but it's only been in the tank a little over 24 hrs.