Learn How To Save Money On Feeding Koi and Goldfish ... continued
Lets go back to the koi
food example introduced that had 15% ash, 10% moisture and 3% fibre. Of the 3.6 kgs organics or food in the bag the really useful food is
that amount that can be digested.
What good is it if the organics remaining are not highly digestible? Lets say
90% of the organics are digestible then the 3.6 kg of food we thought we had
bought reduces to 3.24 kg. The indigestible organics must then come out of the
back end of the fish again and pollute the water and increase the load on the
Ponds and Feeding in Winter
There is a school of thought that says stop feeding your koi when
temperature reaches 10 degrees Centigrade (50 degrees Fahrenheit). This rule is
responsible for many fish deaths - the fish might not die in winter but they die
in spring when general pond activity picks up.
Imagine your're being denied food in winter when you were hungry and
moving around. Come Spring you would not be in good condition. If you are in
poor condition you become susceptible to all sorts of disease. One reason why
HIV is deadly in humans.
The truth is as follows:
If your fish are swimming around they are hungry and need sustenance. Sure they
need much less food but they need it and make no doubts about this. Fish are
clever - they do not waste energy and move only in search of food. When food is
no longer important they lie motionless on the bottom - almost hibernating to
Of course there is a lot of technology and science in a pond environment and
exploitation of this science allows koi to be well looked after, live for a long
time and grow large.
Most koi keepers however have limited funds to implement technological solutions
(like heating a pond in winter to maintain 15 degree Centigrade temperatures or
60 degrees Fahrenheit) and just want to enjoy their pond. This is where common
sense plays an important role.
Common sense should always be a test of any "rule" particularly when this "rule"
is passed from mouth to mouth to the extent it almost becomes dogma.
Therefore feed your fish small amounts if they are swimming around.
What is critical is the quality of food at low temperatures.
The food must have easily digestible protein sources and all correct vitamins
and trace elements - wheat germ is the common and often-recommended source of
this type of protein but this food lacks much of what koi
So apply the common sense rule. Is it better to feed wheat germ or a
balanced food that contains highly digestible
proteins AND trace elements AND vitamins or is it
better to supply wheat germ?
So how do you now if the proteins are highly digestible? - the one quick test is
to read the ash level on the food label. If more than 5% ash then the protein
source is suspect - good protein sources do not have a lot of ash in them.
Ash is an indication of the fact that low grade raw materials are used - bones,
scales, inorganic fillers etc all of which show up as ash in the final food. If
a food does not supply reliable analysis figures on the label DO NOT BUY THE
FOOD. Also ask the dealer questions about the analysis.
By the way ash and moisture add nothing to the food and are a waste of money -
unfortunately it is impossible to avoid ash and moisture altogether.
Consequently if a 5 kg bag of food contains 12% moisture and 13% ash then 25% (a
whopping 1.25kg) of what you bought is just going to pollute the filter since it
will come straight out of the rear end of the fish.
This is what we mean by a common sense approach to pond keeping and saving money
and improving your system.
Have you ever noticed the large amount of faeces on the bottom of your pond?
This is mainly ash from low quality food.
If you want to cross reference this point compare what you see on your lawn if
you feed your dog a common dry dog food as against what you see when you feed
one of those more expensive foods you only find at the vet. You will see much
less mess. Your dog will also eat less kgs and will be in better condition.
In the same way a food containing 35% protein contains 40% more sustenance than
one containing 25% protein. This is a major difference and not just in value.
Koi need high protein levels to develop well.
Ask yourself a simple question. What is the point of spending good money on
ponds, filters, pumps, koi and then trying to save a few
£'s on food? In any case
a fish needs a certain amount of protein. A fish will need far less food of 35%
protein than it will of one containing 25% protein - in fact 40% less. At the
end of day the total food bill will be the same although good quality food may
cost more per kg.