Salt Testers have been specifically designed to measure delicate
salt concentrations in a Koi pond. It is simple to use .. just
switch it on and dip the tester into the pond water to measure the
salt content accurately.
Common Salt, sodium chloride (NaC), is
generally used in the health care and treatment of fish - it's
particularly useful in treating parasites. Most fish have an
internal salt concentration of 1.0 per cent or ten parts per
thousand (ppt) which is higher than their water environment. Osmosis
causes water to transfer from the lower salinity of the pond water
into the tissues of the fish. The addition of salt will lower the
osmosis pressure. This reduces the effort of the fish in eliminating
the excess water. The saved energy is then available for use by the
fish's own immune system to fight deseases. On the other hand, if
the salinity of the water environment is close to the internal
tissues of the fish, the osmosis pressure will reverse and cause the
fish to die of dehydration.
Salt concentrations between 0.3%
and 0.5% (3 to 5ppt) will upset the osmotic balance of some
parasites i.e. the parasites cells will dehydrate. Salt can also be
useful in the control of algae.
Now we have a pH digital meter ...
easy to use - easy to read ... and easy on the pocket ....
Like the salt meters .. you
simply dip the end into the water to be tested - press the button
and you will have a read-out instantly showing you the pH
value of your water ..