Grabbed a female rotkeil a week ago. She is abut 3-3.5 inches. In the last week has thickened up nicely, but starting this morning she has been chasing my 3 yr old silver dollars and almost full grown, id say, male severum. He is the most docile fish I have, but this little itty fish is nipping at his tail and harassing him. He moves and pulls his tail out of her way and every now and then gives her a good nip. Pretty funny to watch, am trying to upload a video