so i have 3 large gold saums in a 100 gallon tank.lately 2 of them do this thing where they flare at each other and circle around each other slow both vertical and horizontal which then results in lip locking which after they break apart they separate for 5-10 mins then one goes to the other and they do it again,sometimes letting go and kinda biting each others chins.no fin damage or damage to scales.just started today,i had vented them and one looks to be male and other female but not 100% sure what im watching take place.the third fish just is kinda there,the 2 ignore it or chase it off.one also goes into like a spasm around the other.shakes a few times,the entire body
