i saw that thread, and wondered if it was the same thing...
but my stars doesn't fart it out (that i've seen- he may of course be shy!)
he just filters it through his gills and spits it out of his mouth.
Doesn't seem to be doing him any harm, and his colour is lighter and lighter everyday, which i'm taking as a good sign, as he was almost black when i got him.

1 x 90G Juv stars and stripes puffer, Ceylon Puffer + GSP + 2 black clowns
1 x 30G LPS Reef
1 x 30G 1 x Blind goldfish
