[mscwd]

Hello,

I just need some advice. I have a pond that is 10 feet X 15 feet and is 4 feet deep. We have about 10 koi and over the last year or so a number of the fish have developed very bent backs and it has got to the point where the fish cannot swim straight and literally swim round in circles.

Does anyone know what the cause of this may be? I do not live in a storm prone area and am sure lightning strikes are not to blame.

Thanks for your time,

-mscwd

p.s. We introduced a large carp to the pond a few years back, before the trouble occured, as it had overgrown its pond. This carp had a bent back although it wasn't as bad as the koi are now. Could it have passed something on to the other koi?