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if its a hexagon, commonly 23" x 20" x 24"

exact measurements may vary slightly depending on the manufacturer due to glass thickness and whether they measure the inside of the tank or the outside of the tank.

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13y ago
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13y ago

if its rectangular, often 36" x 18" x 18"

if its a bow front, often 36" x 18" x 20"

measurements are length x width x height in inches

exact measurements may vary slightly depending on the manufacturer due to glass thickness and whether they measure the inside of the tank or the outside of the tank.

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14y ago

Koi are not aquarium fish. A 50 gallon tank is like a puddle to a Koi and it would be totally unsuitable for just 1 fish. Koi were bred (developed) in Japan to be viewed from above in a pond situation they grow to over 2 feet long and have very broad colourful backs for this purpose. If you wish to keep a coldwater, carp type fish, how about you get Goldfish? You could house up to 4 of those in a 50 gallon tank.

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13y ago

if its a 20 gallon tall, commonly 24" x 12" x 16

if its a 20 gallon extra tall, commonly 20" x 10" x 24"

if its a 20 gallon Long, commonly 30" x 12" x 13"

measurements are length x width x height in inches

exact measurements may vary slightly depending on the manufacturer due to glass thickness and whether they measure the inside of the tank or the outside of the tank.

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12y ago

10 gallons is my best bet.

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Q: How big would a koi grow in a 50 gallon?
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Related questions

How big do Koi Carp grow?

a koi carp can grow as big as a pond


How many butterfiy koi can fit in a 55 gallon fish tank?

1 for like 5 months or so it will grow too big in about a year


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they grow bigg around 12 inches


How many koi carp can you have in a 700 gallon pond?

Depends on how big they are, but you have to remeber they will grow big i would suggest no more then two. I have 2 in mine right now and they are fine with that but they are still 6inchs once they reach 20'' they probable wont enjoy that much and might slow there growth.


How big is the average koi?

A young koi is about 3-7 inches. when they grow to adulthood, they can as long as 40 inches!


How big are koi?

Koi can live for hundreds of years in that period of time they will grow 3 ft. it just takes them a while to get there.


How big does a koi grow?

It kinda matters. Mostly 25 inches, or more.


What size tank can you put koi in I have a 30 gallon tank and want to get some koi?

That depends on if you fit the fish to the tank, or fit the tank to the fish. Koi will grow to the size of the tank. The bigger the tank, the bigger they will grow. You can put about 6 4 inch Koi in a 30 gallon tank. And of course, the bigger the fish, you need to adjust your tank size. The koi will quickly outgrow your tank! They will be like prisoners in a cell, not able to move around. Probably enough to survive if you keep up the waterchanges, but not enough to thrive. Koi belong in a pond.


What is recommended salinity in 1000 gallon koi pond?

To the best of my knowledge Koi do not need salt in their water under normal circumstances, so I would be advising that any potable water would be perfectly OK for Koi.


What kind of pond pump would be appropriate for a 200 gallon koi pond?

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Do koi eat catfish?

It depends how big your Koi is and how big the Catfish is. If the catfish can fit in the Koi's mouth than it will get eaten.


How do i keep a koi fish in a bowl?

You don't. You put it in a pond. Koi grow to over 24". To keep one in a bowl would be terribly CRUEL!