Please advise me on my tank size. - Page 2 - Tropical Fish Keeping - Aquarium fish care and resources
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post #11 of 13 Old 10-01-2013, 04:56 PM Thread Starter
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Originally Posted by thekoimaiden View Post
I understand not wanting to rehome your comet, but this means you will need an even larger tank. You are now looking at something like a 125 gal or larger. Comets are large and active fish. They usually top out around 8 or 9 inches long. A fish that large needs room to turn as well as room to swim. The reason why everyone suggests a pond is because that is really the best place for a comet goldfish.

As to the age expectancy, 20 years is usually the maximum for pond goldfish. Ten is more like the average. There is a pretty large difference in age expectancy for tank goldfish vs. pond goldfish, and it has to do with metabolism. Tank goldfish are kept at a relatively constant temperature year-round which means their metabolism stays at a pretty constant level. There is nothing wrong with this, but the byproducts of metabolism are what cause the aging process. Pond goldfish go into hibernation during the winter during which their metabolism slows to almost a stop. So in a sense, tank goldfish age twice as fast as pond goldfish, thus giving those goldfish in the pond a seemingly longer life span (if they are protected from predation, mechanical failures, and poor maintenance).

I understand that and i have factored all that in... She is my princess and she will be treated like one... She will have the best of everything... She will want for nothing... I love her and she loves me and she is super healthy
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post #12 of 13 Old 10-01-2013, 09:47 PM Thread Starter
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post #13 of 13 Old 10-09-2013, 02:07 PM
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Another thing to add is the active and fast paced swimming of comets aren't compatible with the pudgy goldfish.

If you're going to keep only these 2 pudgy guys, I would do the MIN 40 gallons.(20 gallons for the 1st adult/10 gallons for every adult after the 1st) But it is always best to go bigger for these guys. They are high waste producers and as such, a larger tank/filtration will help maintain the waste they produce.

However, being that one of them is a comet and not one of the pudgy goldies. You will need a much larger tank like Kio mentioned. Based off the different swimming patterns that are NOT compatible, I definitely would rehome the comet. If you truly love your comet, you would do what it best for her and not be selfish by continuing to keep her in a home that is too small for her.

Brace Yourself.....Winter Is Coming
75 gallon Angel Paradise Updates:
Fluval Spec V Steel crowntail betta, 3 zebra danios,
Fluval Spec V - unnamed dumbo plaket betta, 3 zebra danios

Last edited by FishyFishy89; 10-09-2013 at 02:12 PM.
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