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View Full Version : What is this on my tank?

DarthSimon
08/15/2013, 02:04 PM
242452

Any idea? They are like black blotches??
Rea17
08/15/2013, 02:13 PM
It's difficult to say - I've seen marks like that on my tangs after scuffles. On another note, the fish looks very skinny. Get that tang some food asap.