Silver Dollar rapid breathing

[Sunset]

Hi, I have a Silver Dollar who's been breathing rapidly and he seems to be parallel in the tank with head faces tofarde bottom and tail towards top of tank. Visually I see nothing else wrong. Other fish seem fine, there is a good amount of air bubbles in the tank. 150 gallons 2 silver dollars, two ID sharks. 1 Plecko and that's it. Not sure if it's old age or if there's abything I can do. Any help is appreciated

 

[Sunset]

I noticed some spots on his body

 

[AXsmasher]

Have you checked ammonia? What are your params?

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[Sunset]

This is a the silver dollars erratic behavior.

 

[Sunset]

I'm sure many people have had this issue before, is there anything that can be done?

 

[cboatman]

How is your ammonia, nitrite, and nitrate? How long have you had the tank?


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[Sunset]

I've had this 150 gal tank running for 16 years
Tests show the numbers up but not at an alarming rate
All other fish are fine

 

[HarpyFishLover]

I'm not an expert on this type of fish, but it almost looks like a swim bladder problem. I'm not sure how to fix that though...

 

[StevenF]

Tests show the numbers up but not at an alarming rate
All other fish are fine

What were the actual numbers?