What size tank would be best for two LARGE (6" and growing) goldfish?

Question:They may be just common comets, but I love them and want them to grow as large as possible, but I have had different sizes from the 'fish experts' at the store, so if you know how big these 'carp' will get, I'd like to know that, too. I need an answer by 11p.m. Sunday PDT.

Answers:
Because goldfish grow so fast,eat a lot,and produce a lot of waste,you really should try to get at least a 30 gallon tank,but a 50 gallon would be even better.I think well - fed comets can get close to a foot long.Good luck with them!


Goldfish often grow to the size of their tank. The general rule is 1 inch of fish per 1 gallon of water, so you'll probably need at least a 20-gallon tank, and a 50-gallon or more if you want the potential of them growing even bigger.
The bigger tank you get the bigger they will get. I have two 13 cent comets and a 29 cent gold fish in a 45 gallon tank. The comets I bought for my daughter a year after the goldfish. The Golfish is probobaly 4" I got him at about a inch. and the comets are catching up rapidly. They are about 3.5" and were really small last year when I got them. I feed them pellets and they devour them.
You should get ether a 100 gallon tank or build a pond in the back yard with a liner on the wall and a net over and around it so the birds don't get in.
comets get normally around 12" sometimes bigger, so you'll want a tank that is large enough to swim comfortably. I'd go for at least a 50gallon, bigger if you can.
6" seems large, but in goldfish terms it's still small. The longest currently living one is 18" long, and bigger has been recorded. A foot long is a size that any common goldfish can grow to in the right environment and with enough time.

So in reality a pond or 100+ gallon is ideal. The realistic answer for you since you want to see them get as big as possible is simply as large as you can afford or have room for.

Keep in mind gold fish have the potential to live 20-40 years (longer has been recorded) and grow all this time, so seeing them reach full size also requires patience and commitment.
Hi Kris, you have the same type of Goldfish as me & the same attitude toward them. The answer is to get as large a tank as you can possibly afford/fit through your door/stand on your floor-they will make use of every square inch!
I had 6 big goldfish and i kept them in a ten gallon tank. then they died and i had 1 big glodfish, 2 medium goldfish, and 6 littel glodfish in a ten gallon tank whith alot of decoration so buy a 10 gallon tank

10 gallon tank
10 gallon tank
10 gallon tank
10 gallon tank
10 gallon tank
buy a 10 gallon tank

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