The colors of a koi fish can let you know what species it is. The colors can also let you know how old the fish may be.
Unfortunately, there is no easy way to tell the age of a fish.
there is no ninja fish now a days.........we cant know more about it.May be some old Japaneses or Chinese know about it.
by it's actions
Well, usually fish are in the pet store when they're about two weeks old, and usually stay in the pet store for about two more weeks. So figure out how long you've had your fish and add 4 weeks.
As old as a human has to be to be a human.
I don't know much about blobs or any type of fish but i think they have something on the bottom. My old friend that's like 20 years old and studys fishotology Abeey
my fish??? well mine is about 4 months old. :-)
Yeah well i don't know how rotten i've seen them eat like day old dead fish in my aquarium.
you know that one with the puffer fish that eats that fish yea you know
it is the coelcanth they are over 360 million years old and one was caught last yeat this is wrong that fish dates back 360 million years not that old it lives to about 96 years old. i dont know the name but it is a immortal jelly fish i am not kidding look it up.
all you really have to do is put a boy and a girl in a tank together and before you know it you have mini mollies and when its does happen take out the bigger fish because they will eat the little fish
Its really a jugment call the longer you have fish in a tank, or choose to breed fish the more knowledge you will aquire in being able to determine to some degree how old a fish, or school of fish might be,if a fish looks old it probaly is, length and width will get you somewhat close combined with a good close once over visual. If you have any fish books you can find what type of fish you have in the book and the book will tell you every thing you need to know how long the fish will get when it gets to a mature age. Some fish live a long time.
64 years old.
You can fish at any age.
Fish in the book Savvy is 14 years old.
He is 26
if u want to know how old a fish is then take 7th grade life science haha gt there b4 u mr :)ly
Don't know for sure but 18 pound pike is around 20 years old and pike get up to 50lbs
I have a sucker fish it is adout 12 years old and is a foot long
I don't know?! Get a fish and do an expiriment!
My name is yuvna. I am ten years old.oh really i did not know that
When you have bubbles in fish bowls it means the fish is struggling breathing through your water! Know as I have many fish and I know a lot about them!
Santiago knows that the fish are getting tired because he is an experienced old fisherman and has been fishing in the same waters all his life. Hemmingway spells this out very early in the book.