Flame Gourami nipping at equipment

[Kazenouta]

Hey everyone,
Below I'm including a picture of my 15g tank. In it is a green plastic air tube for my air stone/pump. Recently though, Harely Quinn my Flame Gourami started nipping at the tube out of curiosity( I think). I assume they don't have any real power to nip a hole in the line but, I just wanted to hear what everyone had to say about it.

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Sorry for the poor quality!

[annageckos]

Nice fish. No, he can't do any damage. He may be eating little micro organisms growing on it.

[Kazenouta]

Nice fish. No, he can't do any damage. He may be eating little micro organisms growing on it.


Alright, great. Thank you for your quick response!