How have you been trying to raise the pH? pH swings can take a toll on fish....
How long has it been since you've added salt (before last night)? That could be what's bothering him...
Have you checked water parameters (ammonia, nitrItes, nitrAtes)?
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*Kristin*
5 Planted tanks:
55g, 40g, 29g, 20g, 5.5g
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