We have approx. 50 goldfish offspring in varying stages of development (from fry to 1-1/2 inchers) in our pond, a ten gallon tank (for fry only), and a 70 gallon trough. Our pond is 1000 gallons and already has five adults (size ranging from 3 inches to 6 inches) and two plecos. Should we be looking for a home for some of our babies or will the population thin naturally in the pond?