I put it down late last night. =( Before going to bed, I noticed it was gasping for air at the surface. There's already an airline connected to the filter output for aeration. I immediately did a PWC, tested the parameters and everything was okay, but my rainbow wasn't. It thrashed around and tumbled upside down. I knew it was over. Took me a little bit before I made the decision to get out the clove oil.
Thank you for everyone's suggestions.
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