![Friend has a 20 gallon tank with this softball of a goldfish. I can't seem to find a solid answer online for size recommendations because I'm not sure what kind he is. Friend has a 20 gallon tank with this softball of a goldfish. I can't seem to find a solid answer online for size recommendations because I'm not sure what kind he is.](https://i.redd.it/6y3dlrogom1b1.jpg)
Friend has a 20 gallon tank with this softball of a goldfish. I can't seem to find a solid answer online for size recommendations because I'm not sure what kind he is.
![Huge goldfish found in Minnesota lake as officials warn against dumping pets into public waters - The Washington Post Huge goldfish found in Minnesota lake as officials warn against dumping pets into public waters - The Washington Post](https://arc-anglerfish-washpost-prod-washpost.s3.amazonaws.com/public/7E2G5JUNBBAH7LP2CQIBCRQ3OE.jpeg)
Huge goldfish found in Minnesota lake as officials warn against dumping pets into public waters - The Washington Post
Fisheries and Oceans Canada - #DYK that releasing an aquarium fish that's not native to Canada is not only illegal, but can have severe impacts on our waterways? Find out more while #
![Invasive goldfish the size of footballs are spreading from Vancouver to other parts of B.C., researcher warns | CBC News Invasive goldfish the size of footballs are spreading from Vancouver to other parts of B.C., researcher warns | CBC News](https://i.cbc.ca/1.3524915.1460040105!/fileImage/httpImage/goldfish.jpg)
Invasive goldfish the size of footballs are spreading from Vancouver to other parts of B.C., researcher warns | CBC News
![Goldfish may be banned after giant animals cause chaos in waterways and lakes - World News - Mirror Online Goldfish may be banned after giant animals cause chaos in waterways and lakes - World News - Mirror Online](https://i2-prod.mirror.co.uk/incoming/article26719347.ece/ALTERNATES/n615/0_PAY-PNGOLDZILLA02.jpg)
Goldfish may be banned after giant animals cause chaos in waterways and lakes - World News - Mirror Online
![Shiny but deadly – don't throw goldfish in rivers, pet owners told | Invasive species | The Guardian Shiny but deadly – don't throw goldfish in rivers, pet owners told | Invasive species | The Guardian](https://i.guim.co.uk/img/media/fe264ca51a9eb4fa8bb2b602e42ac678441c04c5/0_24_3931_2359/master/3931.jpg?width=1200&height=630&quality=85&auto=format&fit=crop&overlay-align=bottom%2Cleft&overlay-width=100p&overlay-base64=L2ltZy9zdGF0aWMvb3ZlcmxheXMvdGctYWdlLTIwMjIucG5n&s=86b8cb5906342ff6b5ff1037ba942d20)
Shiny but deadly – don't throw goldfish in rivers, pet owners told | Invasive species | The Guardian
![Invasive goldfish found in B.C. lake, biologists act to stop spread to watershed | Canada's National Observer: News & Analysis Invasive goldfish found in B.C. lake, biologists act to stop spread to watershed | Canada's National Observer: News & Analysis](https://www.nationalobserver.com/sites/nationalobserver.com/files/styles/nat_social/public/img/2019/06/23/cpt30105708.jpg?itok=tuWsA_Qt)