USA Koi - One of the Largest Selections of Japan's Most Premier Koi and Koi Accessories

A friend of mine was having troubles with one of his koi. He claimed that the mouth was stuck open and somthing was stuck in it. I told him he was crazy but he should catch the koi and look for a sore on the mouth or something else.

I have seen koi get mouth rot and this made them keep their mouths open. I have seen koi also get a dislocated jaw where their mouth would temporarily stay open.

I have seen koi get an infection in the jaw joint and need injectable antibiotics in order for them to heal up so they could close their mouths. From the picture above it does look like the koi's mouth is stuck open.

I have seen koi suck up and spit out stones a hundred times. One time while I was attaching an airline around the inside of a wooden tank I accidentially dropped one of the brass tacks I was using to hold the airline in place.

10 different koi sucked up and spit out the tack before I was able to remove it from the tank. At first it seemed like they were playing keep away from me and I was losing.

This is a first for me. I have never seen a koi swallow a stone or should I say a stone so big they couldn't spit it out.

Well there is a first time for everything. The next time someone tells me their koi might have swallowed a stone I'll have to be more open minded!