my whites had a spot on his snout where he has been rubbing his nose. what can i put on there to help it heal? neosporin? betadine solution? he has a 25 high tank with plants and branches, any reason why he would be trying so hard to get out? any tricks to get him to stop rubbing his nose on the glass? ive had him since feb and he just started doing this. thanks for your help and advice.