All About Crystal Clear Koi and Goldfish Ponds
- The most common problem that ponds experience
surprisingly does not relate the to fish, but to
plants, - and unwanted ones at that, such as green
water and blanketweed.
- If you take early action, you can reduce the
impact that unwanted algae, particularly green
water, will have on your pond.
- Under these conditions, algae growth is
retarded, and any algae that survived through last
year is no longer able to thrive.
- The accumulation of nutrients in the water over
winter (particularly nitrates and phosphates) fuels
the growth of these remarkable, opportunistic
- Because of their size and mode of reproduction,
algae can soon multiply out of control, blooming
from a few dormant cells or cysts into a pond of
green soup, being the first plants to capitalise on
these favourable conditions, dominating the pond's
biology and appearance.
- There are a multitude of different approaches
for solving green water problems, each with their
own benefits (and costs) and with the added
complication of whatever comes into contact with the
algae, can also affect other pond life, including
our desirable pond plants and fish.
- Shading: A significant number of pond keepers
who have tried many different methods of controlling
green water (and blanket weed) have found that
shading the pond is very effective.
- A second natural method of controlling green
water is to add barley straw to the pond.
- This method can take several months to work as
its effectiveness relies on the bacterial breakdown
of the straw.
- A more recent solution to the green water
problem is to add a supply of beneficial bacteria
that breakdown the nutrients on which the algae
- The unit is called a Uvc (Ultra-Violet
clarifier), and uses ultra violet light to control
pond water "green water"
algae plants control fish nutrients growth Uvc bacteria
"barley straw" effectiveness shading "desirable pond
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