Persistently green water can easily lead to fish deaths from oxygen starvation and ammonia

This is a 250 word (approx) summary of a chapter from my water gardens book pictured to the left.

For a complete list of summaries see the right hand column

Concepts:

algae, fish, water, pond, Ultra, design, Kill, bacteria, rays, pea-soup, plants, matter, filter bacteria, harm, treatment.

Summary:

- South Africa is truly a land of sunshine.  It is a country offering a wonderful climate to ourselves and our fish.  However if we did not have Ultra Violet on our side we would not see much of our fish.

- You see; warmth and sunlight mixed with nutrients emanating from fish secretions and food excesses create perfect conditions for algae to grow no matter what kind of biofilter we have and no matter how good it is.

- These normally green plants replicating at the rate of 30 times per hour under ideal conditions can quickly give a pond a pea-soup appearance.

- This pea-soup needs to be seriously avoided if we want clean and clear water.

- Persistently green water can easily lead to fish deaths from oxygen starvation and ammonia poisoning.

- Technically it is a source of light enjoying a particular wavelength and it appears to be blue.

- What is important to us is not what it looks like so much as what it can do for us.

- Equally important is what it wont do.

- The design is such that pond units cannot reach sufficiently high radiation levels.

- Sterilisation UV units are required for this purpose.