but I would never intentionally add frogs without predators in the water. I would not want 50,000 frogs in my pond next season LOL.
You won't have them.
Have you ever seen a pond without fish but with large amount of frogs? You haven't.
For example, one of my smallest ponds first few years had no fish in it and only later there were some crucian carps stocked. They aren't predators at all. What about frogs? Actually their count didn't change a lot. At least it looked so.
I know small ponds without any fish in them. What about frogs? The same - there are some and that's all. All other probably are eaten by some animals/birds or they simply go away to find another home.
