Hi! We have a natural pond that sits in a 25+ acre clay-dominant field that is mostly natural - no crops or chemicals. The pond is about 250'x100' and max depth is 10'; it is not spring fed but holds water year round; we believe it's a perched (sp?) water table - the existing water table is about 35' lower and there are other spots on the hillside that retain water - but that's never been confirmed. Overall, the pond seems pretty happy - lots of frogs, some turtles and birds etc - but we notice that it has lots of plant material that thickens greatly in the summer and threatens to choke everything out and reduce free water. We don't 'use' the pond but would like to keep it in good health and relatively clear. Wondering if you can recommend some reading information to guide us in pond health, or a service in St. Joe County that could come out and assess what would be best for the pond? Thank you!