I live on the river so I have constant access to minnows. My duckling has a pool that I stock up with minnows every 2 weeks for her to eat rather than going to the river every day. But at the end of the 2 weeks her pool gets cleaned so I give her the surviving minnows sometimes around 10, is that too many? I know ducks eat fish and it won’t hurt them but is there such thing as too many fish? She has a healthy weight I think? I just don’t want to feed her too much minnows.