Why fancy goldfish require big tanks- visual perspective

[Autumnsky]

So true about baby/young fish being sold in stores, like a Oscar or common Pleco, getting so big when fully grown.

There is the difference of growing up stunted and growing up to look like a prize winning fish. Education/knowledge and a desire and dedication for the best life for the fish.

 

[Betta keeper]

I just read the whole thread, and noted that someone mentioned the lack of common goldfish

Here are the four common goldfish that I am wintering. The small one is 3years, and was kept in a 29 gallon tank until last year, when I learned about their need for space. The others are his pond-mates. They live at my dad's house, and I offered to winter them because of renovation at his house this year. The tank is a 38gallon bow front




Keeping this clean requires two 50g filters, and twice weekly water changes, but they go home soon

 

[Big_Dee]

JLK, How big is the mature one and is the other a baby still ? I read Oranda's average 6-7 inches fully grown....does your variety get bigger still?

 

[Big_Dee]

Actually that is true in another sense, because their growth is stunted but then it can result in a shorter their life span.