I live in North Central Pennsylvania (Zone 5). My pond is about 1000
gallons and ranges from 1' to 4' deep. It was built last summer. It
contains 19 goldfish type fish, tadpoles, two small turtles and newts.
The many plants consist of anacharis, iris, cattails, pennywort, water
celery, primrose, creeping jenny, lobelis, two water lilies, and so
on. Do I need to fertilize the plants or is that what the "critter
manure" is for? Any suggestions would be appreciated. Thanks.