My red devil has now started jumping up out of her water and smacking the hood. Is this normal behavior? And I think she is hurting herself because she constantly swims from side to side of the tank at full speed ramming her mouth into the glass. I hear loud smacking and a pop noise over n over as she does this. Its almost a constant thing now. I dont want her to get hurt but I dont have any idea why she does all these things or if there is any way to fix it?? Any advice would be great. Thank you!