what do i do to stop this?

[caribemob]

what they said but sometimes it has nothing to do with tank size (I had a 6" rhom in a 180g before it still rubs on the glass and had a small chimple), if the fish likes to rub on the glass there's nothing you can do. put some plants and stuff to reduce the chance of it rubbing the glass.

best advice

 

[LBathory]

chimple. It might help to dim the lights of his tank. If it gets really bad, you can cut it off with a very clean, very sharp, razor.

 

[caribemob]

chimple. It might help to dim the lights of his tank. If it gets really bad, you can cut it off with a very clean, very sharp, razor.

wow very dangerous dog, why would you recommend doing surgey like that dog, be forreal

 

[ballinouttacntrol]

what they said but sometimes it has nothing to do with tank size (I had a 6" rhom in a 180g before it still rubs on the glass and had a small chimple), if the fish likes to rub on the glass there's nothing you can do. put some plants and stuff to reduce the chance of it rubbing the glass.

Yeah, when I was doing my initial research before I set up my tank I read "to prevent this" put plants at both end of your tank. I've never seen it in a home tank but I always see it on larger Ps at the pet stores in way too small of a tank

 

[kevbc03]

It'll heal in time. It's from running into the glass when spooked.

 

[mfgl]

plant tall plants on both ends of the tank, or put black tank background on the ends. Will help him to see the ends of the tank instead of trying to swim thru. Takes about two weeks to go away after he stops rubbing it.