My problem would be making myself let it go. I have always loved little critters like that. When I was a kid I couldn’t drag enough of them home. Poor Mom!
I had a serious *Look ma...what followed me home* syndrome. LOL...it was my parents’ fault....coz they wouldn’t let me have a pet until I showed responsibility to care for it; goldfish and turtles excepted.
Another tangent....one of the best aquariums [we had many] we had was when I build one w/ the boys using all the critters we would net in a pond. Water scorpions, water boatmen, skimmers, small *fry* size minnows and blue gills...yada. Had to be one of *bestest* projects I did with the kids...most educational b/c I made them look up about all the critters. And the *stock* was free.
My wife and son regularly catch tadpoles at the pond and bring them home to grow in a large bin we keep in the yard. They would get excited to see them mature and eventually hop away. Last year a couple of jays figured out that our frog bin was an easy buffet. Oh, the drama!