I wrote an answer but it wouldn't show up, so here goes again!
Good for you - I loved my tongue piercing - I had one for 3 years...but took it out just because I had too - don't ask.
I don't know about the salt water...A nip of vodka now and again will help sterilise - Well, that was my excuse! :D
A word of warning - Be ever careful when eating. I have 4 broken teeth thanks to my tongue stud....
On the plus side, I have lots of piccies with me hanging stuff off my tongue, such as my personal fave - a dinner suit on a coat hanger, threaded through my tongue...
I was bored :D Enjoy it!
You're only on the planet once, why not?!
Best wishes!
snappy