Which Is The Most Tolerant Fish

[stoneagedinosaur]

Hi folks

Just trawling through fishy facts and got wondering... which fish is the most tolerant for temperature, PH, kh etc?

Come on factoids...

 

[Truck]

There is no definitive, hardiest fish.

 

[roadmaster]

There is no definitive, hardiest fish.

+one.Under stress,fluctuating water parameters,fluctuating temps,poor maint,improper diets,all fish suffer. Is this a trick question?
Did I win anything?

 

[stoneagedinosaur]

Nah... just wondered which would tolerate the widest temperature range, widest PH range and widest kh range. No reason other than curiosity really. Have a nice stable aquarium with a really good community. Not looking to replace - just curious really

 

[meguro]

i think coelacanth is a pretty hardy fish. eh survives millions of years and doesnt afraid of anything.

 

[Bignose]

i think coelacanth is a pretty hardy fish. eh survives millions of years and doesnt afraid of anything.

Except it is almost the complete opposite of hardy. If you bring one up from the depths it will die because the water pressure will be too low -- that's a main reason we went so very long before finding one again.

To answer the OP's question, the guppy or the common goldfish are both exceptionally hardy and tolerant. I think that most of us know at least some other person who breaks all the good fishkeeping rule with a tank of guppies or a goldfish in a bowl, and yet those fish live for a pretty long time.

 

[spectrum]

I hate it when I tell people that goldfish need minimum 20g (That's right isn't it?) and they come back at me with, well how come they live happily in bowls then? AAARG

 

[Truck]

I hate it when I tell people that goldfish need minimum 20g (That's right isn't it?) and they come back at me with, well how come they live happily in bowls then? AAARG

Fancy goldfish 30 gallons
Common goldfish 150 gallons (6*2*2) a pond would be better though.

 

[Bignose]

I hate it when I tell people that goldfish need minimum 20g (That's right isn't it?) and they come back at me with, well how come they live happily in bowls then? AAARG

spectrum, it is a difference between surviving and thriving. A goldfish can survive in a bowl, for a significant amount of time even. Again, I think that we all know of a situation like this.

However, the fish won't thrive in a bowl. A common goldfish can have a lifespan well over 10 years, if cared for properly. Lifespans of even 20 or 30 years are not unheard of. The only way to achieve that is to give it a healthy environment -- lots of water to help dilute the large amount of pollution this messy fish makes. Large swimming space for this fish that is active and can grow very large. Etc.

And that is main goal of a forum like this. We aren't here just to help people keep their fish. We are here to help educate people on how to help their fish thrive. How to help their fish not just live, but live long, happy, healthy lives.

 

[Monty-2010]

tilapia!