# Goldfish

**URL:** <https://boards.straightdope.com/t/goldfish/42337>\
**Category:** About This Message Board\
**Created:** [November 22, 2000, 6:50pm UTC](https://boards.straightdope.com/t/goldfish/42337 "2000-11-22T18:50:55Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Tapanga](https://avatars.discourse-cdn.com/v4/letter/t/bcef8e/32.png) [@Tapanga](https://boards.straightdope.com/u/Tapanga)\
**Post date:** [November 22, 2000, 6:50pm UTC](https://boards.straightdope.com/t/goldfish/42337/1 "2000-11-22T18:50:55Z")

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“Do goldfish grow larger in larger tanks?”  
This is a hypothesis for my son’s science project. I’ve gotten a lot of expert replies but need more for research reasons.Some are suggesting it has to do with ammonia and nitrates but my research is inconclusive. hELP!

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**Author:** ![Arnold\_Winkelried](https://avatars.discourse-cdn.com/v4/letter/a/3d9bf3/32.png) [@Arnold\_Winkelried](https://boards.straightdope.com/u/Arnold_Winkelried)\
**Post date:** [November 22, 2000, 7:33pm UTC](https://boards.straightdope.com/t/goldfish/42337/2 "2000-11-22T19:33:35Z")

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Tapanga, this kind of question probably belongs in the “General Questions” forum. I suggest you put your question there.

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**Author:** ![carnivorousplant](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/carnivorousplant/32/3563_2.png) [@carnivorousplant](https://boards.straightdope.com/u/carnivorousplant)\
**Post date:** [November 22, 2000, 8:14pm UTC](https://boards.straightdope.com/t/goldfish/42337/3 "2000-11-22T20:14:30Z")

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Goldfish size is not a function of tank size.  
Keeping them in small containers is unhealthy and cruel.