Well, most of you may have heard about Tug, the half moon betta, with finrot. Well he's on AQ salt so I changed the water out, and when he was re-acclimatized a put him back in his tank. His stress stripes were vary visible and he just swam at the front of his tank back and forth, and that was about it... Then he went and laid down on the bottom, and only goes up for air every once and a while, before laying back on the ground, barely moving his gills... He's kind of scaring me, because he lays there, as still as a statue...
What could be wrong?