Calcium is important for a yabby to form
a new shell and to molt successfully.
A yearly application of Agricultural lime
(NOT HYDRATED OR BRICKIES LIME)
on the banks around your dam will
ensure an available source of
calcium is always available.
Applying Ag lime on the banks of your
dam allows it to be gradually washed in
when it rains.
An indication that there may be a lack of
available calcium in your water
is that a great many of your
yabbies will have soft shells.
One or two soft shelled yabbies in a harvest
is acceptable as they may have
recently molted, however more
than that may indicate
a lack of calcium.
Happy Yabby Farming
Importance of calcium (alkalinity) in your
Pond, Dam or Aquarium