Thats what i thought did he ram into something?? Seems like it got bigger thou and def looks like a hole begining to form? Or at least a good sized dentCould be hole in the head or could be a wound from running into something?
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the water quality absolutely cannot get any better all of the harsh chemicals have been staying at very low numbers if not at zero.If it's hith than you have to get the water quality better. Unless it's just to hard and he'll never fare well.
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