any fish out there?

[selki]

that can scratch glass??? not petrified or whatever....one that is alive and rdy to scratch your aquarium! u think there is a species of a catfish that does this?

 

[12 Volt Man]

nothing that can scratch glass

but panaque catfish (royal plecos etc) have teeth that can scuff acrylic tanks.

 

[Lupin]

Oddball used to have some large plecos including I believe LDA33 which left deep scratches on his acrylic tanks.

 

[koop171]

I think Lupin is thinking of that 30"+ monster Oddball had. There are pics of it floating around. But it was acrylic not glass.

 

[Lupin]

I think Lupin is thinking of that 30"+ monster Oddball had. There are pics of it floating around. But it was acrylic not glass.

Oops...I just read again it was glass. I did say it was acrylic in Oddball's case but the OP asked for glass, my bad. I have another blonde moment again.

Check this.
http://www.monsterfishkeepers.com/forums/showthread.php?t=13201

 

[V1xIII]

Lol, that's a picture of a dog now apparently.

 

[andyjs]

Lol, that's a picture of a dog now apparently.

Haha, apparently an L200 is a German Shepherd

 

[banjocat]

Not a fish, but I've heard/read that mantis shrimp can damage aquarium glass

 

[andyjs]

Not a fish, but I've heard/read that mantis shrimp can damage aquarium glass

Yeah, I've heard they can smash right through the thin glass of smaller aquariums. I was really thinking about setting up a specimen tank for one a couple years ago, but it was going to be acrylic for that very reason