Where does the fish symbol come from that represent Christianity?

No, the sign of Pisces is NOT associated with the Christian fish symbol.

The video you watched is incorrect.

However, just because we celebrate Christmas when Sun is in Capricorn is does not mean that Jesus was a Capricorn.

We celebrate Christmas around the Winter Solstice because when Christianity was young, and persecuted in Rome, they had to "hide" their gatherings and celebrations. So they met during the Winter Solstice celebrations (which was a huge city-wide party) ... so no one would notice them and their own gathering.

We have no idea WHEN Jesus was actually born.

And the video you watched was full of bull. Never swallow anything just because some says it, whether they say it in person, in writing, or in a video.

Remember that 4 of Jesus's disciples have been fishermen for a living. And that Jesus himself called himself a "fisher of men".

It is true, though, that most astrologers guess that Jesus probably had Sun in Pisces. But there's no proof, it's just a guess.

Because Pisces is the Month when Jesus was "reborn"/resurrected.

Pisces is also a symbol carried by the Pope. Fish is a masonic symbol

http://en.wikipedia.org/wiki/Vesica_piscis

@Leo yes I did post something kinda informative and was abused over that by Pisceans who took things really personally, but nevermind now. The Ages go backward, instead of forward, so Aquarius comes next yes.

@mads cows are also dietary restrictions, but I don't think bulls would be an exception and therefore the sign of Taurus? How about crabs?

The only thing I heard about fish and the bible is that frying fish on friday was symbolic for the term we were moving into the age of Pisces. Which I hear is the age we are in now, but I don't know. Does Pisces come before Aquarius?

Don't listen to what you hear unless you can confirm it for yourself. If you can't prove it to yourself, it's as good as fake. Don't put it pass people to lie to you, and even more not know what they are taling about.

Fish are mentioned in thousands of times in the Bible, both old and new testaments. One reason fish is associated with specifically Christianity is because when Jesus called his first disciples, they were fishermen. He called them by saying "Come and I will make you fishers of men." Matthew 4:19 The fish is associated through the miracle of the loaves and fishes, (Mark 6:41, Luke 9:16), in the dietary restrictions of the Jews. When Christians put those decals on the back of their cars they are basically declaring that they too are "fishers of men" and are fullfilling the Great Commission.

But its not astrological.

For many pop-culture Christians, the "fish" decal on the back car bumper, or attached to a key chain or door is a symbol of their religion, and a feel-good statement about Jesus Christ. Early Christians used the fish as a recognition sign of their religion. It is also identified as the "Ichthus," an acronym from the Greek, "Iesous Christos Theou Uios Soter," or "Jesus Christ the Son of God, Saviour." Oxford English Dictionary (C.E.) defines "Ichthyic" as "of, pertaining to, or characteristic of fishes; the fish world in all its orders."

But contemporary Jesus worshippers might be surprised, even outraged, to learn that one of their preeminent religious symbols antedated the Christian religion, and has its roots in pagan fertility awareness and sexuality.

This is my best guess. Greek for fish is ichthos,

I = Jesus

CH = Christ

THEOS = God