Phloxface

I just bought a Ph test kit and tested my tank water. It's so high it's off the scale of the card, so that means it's higher than 7.6
The tester was very deep blue so I'm guessing it might be around 8.0 or higher. My Bettas have been living in this water for over six months with seemingly no problem.* I have a sick Betta who seems to be having swim bladder problems. He's floating and has a hard time swimming or staying down and tips to one side when floating. I wonder if the high Ph could be the cause? I'm at my wits end as to what to do to help him! He's eating and seems okay otherwise but doesn't swim much as it seems to hurt him.

Gunnie

I doubt ph is the cause. Fish can usually acclimate to higher or lower ph levels, and your betta has been in that water for 6 months. I think something else is going on in your tank. Has there been any other changes lately?