My pond water is very clear, but my fish are dying. What is wrong?
A Drinking water might taste good, smell good, and look clear. But some of the most toxic chemicals that are known to cause cancer are colorless, odorless and tasteless. I recommend that you purchase a test kit form a pond store and check your water regularly. Nitrates, nitrite and ammonia are all detrimental to fish. Ammonia and nitrite can, at high levels, be fatal to fish. These substances are dissolved in the water and consequently are impossible to detect by the clarity of the water and they can break down the fishes’ immune system.