Hello I have a new breeding pair of convicts this is the first time they have mated and laid eggs they have claimed a cave and are very protective I was recently gifted a quite large rainbow shark and am concerned there will be trouble as he keeps trying to poke around the cave as he is new to the tank the convicts have been good with everything else in the tank e.g bristlenose , pleco , rosybarbs and guppies and even though there feeder fish they haven't really been given a second look should I leave it and ply it by ear put up a divider or set up my second tank and move the parents and fry ? Thanks in advance mackie