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Douglas DuHamel
- weird species
Ick is caused by stress on fish or irregular drops of temperature in your aquarium.
You do not mention if it's salt water or fresh.
Some people actually kill a feeder gold fish to help stabilize the tank and bury it in the gravel; I think that this is going a bit too far.
If your tank is Saltwater you could most likely have bodies of small salt water fish mixed in with the coral. I would recommend taking these remains out washing your gravel and do a 15% water change then treat your fish for ick.
Weird yes but anything is possible!
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