Well, honestly the first thing that comes to mind is if the water wasn't so clear it would be a much more productive pond. Production of a pond is associated with clarity because clarity is greatly dictated by phytoplankton. Phytoplankton are microscopic plants that give water its green water color. Phytoplankton provide oxygen to the water via photosynthesis, they are also eaten by zooplankton. Zooplankton are eaten by small fish and of course small fish are eaten by larger fish. Therefore, phytoplankton is the base of the aquatic food chain. Clear water means there is an extremely scarce phytoplankton bloom.
If you have an established pond you must look at what symptoms your pond is currently experiencing. Is the majority of the lake shallow (less then 6 ft)? Do you have aquatic vegetation covering more then 10% of the pond bottom? Is water clarity greater then 18-24 inches? If you are saying yes to these questions it is time to get a plan started to control vegetation and decrease water clarity. The best way to do this is by using a multifaceted approach combining biological, chemical and mechanical control methods. First, look into why are the plants growing. If the pond is shallow you may need to increase depth in many areas. Take the 2-3 ft water and try to increase it to 6-8 ft. This will be expensive but will increase the production of the pond greatly. Second look into what plants are growing and use herbicide and either Triploid Grass Carp or Tilapia to help you control the plant. Once the majority of the aquatic plants are controlled begin to use a dissolved fertilizer to promote phytoplankton growth. Fertilize when water temperatures are between 68-75 degrees but only after rooted plants are controlled. By using the dissolved fertilizer you will stimulate a phytoplankton bloom which helps to shade the pond bottom and prevent further plant growth.