As you can see his snout is turning black and I'm guessing this is because he bangs his face into the glass. Is this normal for a male toad? My female does this a little, but not like Rufus does. Just looking to see if this is common and any suggestions. Only the front tank is not see thru, but he doesn't bang on this side, mainly on the back which is fabric lined on the outside, the sides are frosted window film.
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