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Many pondkeepers as they design and build their ponds
decide to include a filter system that is far larger than the water
volume in the pond requires. For example, they will build a pond
that is, say, 1000 gallons and add a filter that adequately cope
with, say, 4000 gallons of pondwater. One consequence of this is
the introduction of ever increasing numbers of fish as the pondkeeper
knows that the extra ammonia excrement arising from the overstocking
in the particular volume of water can be adequately dealt with by
the larger than necessary filter.
In addition, some pondkeepers will be “more
than generous” when they feed their fish. This again will
increase the ammonia excreted into the pond from the gills and anuses
of their fish. The larger than required filter can deal satisfactorily
with this extra ammonia waste.
These two aspects, overstocking and overfeeding, do
have an influence on the amount of Viresco™ that should be
used in these particular cases. Our recommended usage rates are
based on water volumes where the input of nitrate from the filter
is not excessive. As a guideline, if there are more than 2.5 kg of fish weight per 1000 gallons of water, then more Viresco™ Aqua or Koi should be used.
However, where pondkeepers are overstocking
and/or overfeeding because they know their extra filter capacity
can cope, they should use larger doses of our Viresco™ products.
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Weighty issues ....
Copy of an article which appeared in Koi Carp Magazine which talked about Viresco's new formulae for assessing the weight of koi and its implications on pond treatments, stocking rates and feeding. |
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