I have a small pond with one fish in it. It is quite old and is 7-8 inches long. There are several snails in it reproducing rapidly but the population never seems to grow. A pond skate appeared the other day which I'm quite happy about.
Another nice surprise I came across is 2 dragon fly larvae. One seemed to be more developed than the other, but I don't think they been there that long. My problem is, I don't know what they eat to maintain themselves. What do they eat?