Hello everyone !! I was just wondering if Oscars sitting still on the bottom of the tank was a common thing for these types of cichlids. I have two 3 1/2 inch fish in a 60 gallon and one will lie motionless on the bottom for periods of time. When I walk over to the tank he'll promptly rise from his resting position and act completely normal. I've seen them from time to time lip-lock and tail fan each other in what looks like to be a mating dance of sorts. Is all of this normal or is there somthing wrong with the one? Both are eating great and conditions are optimal so I'm kinda besides myself. Thanks.