Fish Jumping In Pond, Fish Jumping Rspb Lakenheath Ian Wood Thompson Flickr

Hopefully this is the cause of your koi fish jumping dilemma as this cause is obviously harmless.

Stock pond fish. These reasons depend on what you are thinking is a jump. I will assume this is not what you are thinking of. Further if it is the mating season they can behave in an erratic way which may cause them to jump as they bash against one another.

Fish will also behave erratically during mating season jumping and bashing into one another. The pond is around 100 gallon plastic in ground unit with a small upper level that has plants in it but isnt accessible to the fish. Temporary netting can prevent injury with new fish and keeping an eye on new fish for a while after introducing them to a new pond is a good idea for many reasons jumping behavior included.

Koi carp love to eat natural foods such as flies and bugs so they could be jumping to catch these. Fortunately this is very easy to treat with envii pond equaliser. I have a small pond that had one koi fish in it.

Your koi might also start back with the aerial exploration in spring or after major changes to their environment such as new plants or waterfalls. When fish experience pain they will either swim into the pond walls to itch the pain. Koi balance themselves with air in a swim bladder and will come to the surface and gulp some air.

When your koi fishes are chasing one another there will be times that they will jump in the pond. Either that or they will jump out of the water to try and escape the pain. Keep 25 to 50 of the pond surface uncovered though to prevent stagnant conditions from developing.

There are only a few reasons koi jump. Equaliser instantly stabilises the chemical balance in your pond and creates perfect water conditions. Plants in your pond will also help to filter the water and keeping the temperature more.

Fish jump out of ponds for a number of reasons such as flushing gills balancing swim bladders high temperatures and poor water quality with excess ammonia spikes. So you have to ensure that your pond have sufficient water and oxygen first you ensure that sufficient water available in the pond next for oxygen you can put a lot of water plants in your pound. As i mentioned before just because a fish jumps doesnt mean something is wrong but it really could be looked at as a signal of some kind of problem and particularly when you see several.

A couple weeks ago i found the hose that pumps water to the upper level had come off and pumped most of the water out only leaving a couple inches for the fish to swim in. I think its fairly reasonable to assume that if a pond owner sees a fish jumping or finds one on the ground most of us would get a little worried. To protect your fish from too much sunlight incorporate fish shelters and plenty of submerged floating and emergent plants for them to seek sanctuary in.