yeah thanks
but I've been looking at some... they all explain really badly...
Im visual and I can only find like... 6pages of text... with 2-3pictures that doesnt reprensent anything...

I've took a look at this video
https://www.digitaltutors.com/digital...ideo.php?v=790
and the fish mouvement is what im trying to get (I dont need to block the rotation or something like a wrist... just a simple... snail)

I dont know if there's a simple tutorial... that only show how to do a squeleton... transfert it to IK
assign it to... my caracter... (im able to do bones and IK... but thats the only thing...)
and then ... to animate it... just simple animation (I mean... its not a finger, a hand or something hard... its a snail)

so.. ill continue to watch tutorials to see if one can behelpful and simple

thanks for the answer