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koi fish tanks guide in building a koi fish aquarium

koi fish tanks

koi fish tanks What size tank do you need for a koi fish?

koi fish tanks

So, if our 125-gallon tank will hold 1.25 12-inch koi, then it will hold 11 6-inch koi (1.25 X 9 = 11).

It is essential to realize that as the koi fish grow, you will have to remove koi fish from the koi fish tank to maintain the proper load balance.

 

Can you put a koi fish in a tank?

Keep koi fish  in large aquariums for a few months at a time. If you live in an apartments, you may have to keep koi in aquariums for their entire life.

That is possible, as long as you do not overcrowd the aquarium with too many koi. … Your tank should have 1 cubic foot per 1 inch of koi fish length

Obtain an aquarium that is large enough to contain the number of koi you have.

Koi need a large volume tank to thrive. Your tank should have 1 cubic foot per 1 inch of koi fish length.

Multiple the tank’s height by width by length to determine the tank’s cubic footage.

Put the aquarium on a stand that can support the weight of the tank, and find a location in your home that can accommodate the weight of the tank safely, such as near a support wall or on a concrete basement floor.

Place a substrate layer at the bottom of the tank at least 2 inches deep. Use a mixture of small gravel and larger gravel or rock pieces. Koi are bottom-feeders, and will enjoy sifting through the substrate.

Install an external filter to the aquarium that is made for the number of gallons in your tank. You may choose to use a carbon filter, as well, to remove toxins and impurities in the water.

Install an aquarium heater to regulate the temperature. Although koi fish  can withstand water below 40 degrees and above 80 degrees, koi kept indoors should have a heater regulating the temperature to 68 to 77 degrees. That will maintain the metabolism at a good level.

Keep an koi aquarium cover on top of the tank at all times to prevent koi fish from jumping out. Use a cover with a light inside since koi fish also need 12 hours of light a day.

Test the water’s pH regularly. Koi like a neutral pH between 7 and 9. Add pH stabilizer to the tank water if the pH gets too low.

Perform partial water changes weekly. Remove 10 to 20 percent of the tank water and then top off the tank with tap water, adding dechlorinator to the new water before pouring it into the tank.

Well water not been treated with chlorine may not need a dechlorinator.

However, let the well water sit out for several hours, and then test the pH. Treat the water with pH stabilizer if it is below 7.

Feed the koi  fish only what they can eat in five minutes. Overfeeding will pollute the water.

How many gallons of water does a koi fish need?

We generally offer two rules of thumb regarding the number of koi in a pond or koi fish tank . First, average water conditions will allow 1 inch of fish per 10 gallons of water (or 100 inches for a 1,000-gallon pond).

 

Do koi fish grow to the size of their koi fish tank?

There is an element of truth to this, but it is not as innocent as it sounds and is related more to water quality than koi fish tank size.

When properly cared for, koi fish will not stop growing. Most fishes are in fact what are known as indeterminate growers. This means that, unlike humans, they grow until they die.

Though their growth rate when they are about 3 years old up will be slower compared to their 0 to 1 years age.

 

How much space does a koi fish need?

Koi fish should be stocked based on a reasonable estimate of their full growth, not on their size at purchase.

Most well-maintained koi ponds will support 1″ of fish per ten gallons of water.

Though some koi in the largest ponds will grow to 36″, we recommend using an average of 21″.

 

How long does it take for a koi fish to grow to full size?

The oldest koi was 226 when it died in the 1970s indeed one of the longest living vertebrate ever recorded) was a beautiful scarlet coloured female Koi called ‘Hanako’ (pronunced hah-nah-koh; translated as ‘Flower Maid’).

it can take more than 10 years to get to full size.

Basically if you raise them the cheap American way, in a backyard pond or a mini pool at a Chinese restaurant, you can expect to keep them for about 30 years and get foot long fish.

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