What would cause all the fish in my pond to die?

The most common cause of fish kills is suffocation due to lack of dissolved oxygen. Most dissolved oxygen is produced by algae and aquatic plants through photosynthesis. Ponds suitable for supporting fish should have a minimum pre-dawn oxygen level that is close to optimal levels required by the fish.

What to do if your Koi have died?

Koi Have Died But Goldfish Are Fine! My 1,000 gallon pond has great oxygenation, great flow turnover, and according to the fish store that tested my water, everything is perfect, although the pH is at least 8 (his kit only went up to 8). I do 10% water changes a week, with dechlorinator. Water is crystal-clear, and I have a UV light running.

Why does my koi fish have an abnormal body posture?

Fresh, clean water is the best friend any fish will ever have. An abnormal body posture may indicate a problem with the swim bladder. That may be due to injury or infection, and sometimes, constipation. Fish may also assume abnormal postures if the water quality is poor, if it has ammonia or nitrites in it.

What causes a Koi to float on its side?

An abnormal body posture may indicate a problem with the swim bladder. That may be due to injury or infection, and sometimes, constipation. Fish may also assume abnormal postures if the water quality is poor, if it has ammonia or nitrites in it. If the water hasn’t been tested, test for ammonia, nitrite, and nitrates.

When did the first Koi from Petco die?

Within two weeks or so of putting the first batch in from the koi dealer in, 2 of the first three domestic koi died. Then 2 of the next three died, again within about 2 weeks of putting them in. Now, I have 1 5″ koi from Petco remaining, 1 5″ from the next batch, and the 2 that I put in on May 27.

Why does my Koi keep flashing after release?

Koi are strong and hardy fish, and they typically recover very quickly from shipping stress. Typically in just 2-3 minutes after release, the flashing should subside. If your Koi haven’t recently been shipped, are settled into your pond or tank, and are still flashing, scratching or scraping, it is likely a parasite issue.

What does it mean when a koi has no scales?

Refers to koi that have no scales, except for enlarged scales on the lateral line and two lines running alongside the dorsal fin Refers to koi with reflective scales that create a glimmering sheen as the fish move Refers to koi with a singular red marking on the head, akin to the red circle in the Japanese flag.

Which is the only koi that has only one variation?

One of the few koi that only has 1 variation being Doitsu Matsuba.They show a solid metallic base with a black net pattern, primarily along the back but a good specimen will exhibit throughout the body.The colour of the base will vary, but must always be metallic in appearance.Gin Matsuba are white, Aka Matsuba are Red and Ki Matsuba are yellow.

How long does it take for a Koi to recover from stress?

It is not unusual for Koi going from our holding tanks to your pond or tank to display the same behavior. The good news is, this is almost always temporary. Koi are strong and hardy fish, and they typically recover very quickly from shipping stress. Typically in just 2-3 minutes after release, the flashing should subside.