Is the most longest living fish more then 100 years old?

That's a bit of a tricky question! There's no single "most longest living fish" because different species have different lifespans.

Here's why:

* Some fish live incredibly long lives: There are species like the Greenland shark that can live for hundreds of years. One individual was estimated to be over 400 years old!

* Others have much shorter lifespans: Many fish species only live for a few years.

So, the answer depends on the specific fish you're talking about!

If you're asking about the longest-living fish species, the answer is YES, some can live for well over 100 years. But, there are also plenty of fish that don't reach that age.