I had someone watching one of my betta's, who's had tail issues since i can remember.
Well trying to be helpful, She changed the 2.5 gallon tank with the "Zero" water filter water and added my prime and stress coat+
NOW, he's laying on the bottom of his tank, not moving, I thought he was dead. I did a little over 50% water change and let him get use to it for over an hour. He has seemed to perk up a little but is back on the bottom.
What should i do?? Should i do a 100% water change? he was only in the zero water for a day and a half.
He's in a 2.5g heated (81)