What is this on my silver dollar??

  • We are currently upgrading MFK. thanks! -neo
Looks like an abrasion,possibly from brushing past the driftwood.
 
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Looks like some type of burn or sore imo. Do any of the others have it?
 
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If your heater is located in the display tank, fish can brush up against it and be burned. Heaters should have a guard to prevent such injuries. I prefer in-line heaters. Just a thought.
 
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Aquanero Aquanero
 
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