My Porcupine Puffer has recently gotten a small bacterial infection(ie white cloudy,outside of eye) on his right eye by scratching it in a piece of live rock. What is the best med i can give him without throwing my skimmer completely out of whack and keeping my live rock nice and coraline covered still(id rather not move him into a QT tank cause he is so big and dont really have a big enough tank to do that.My nitrates were pretty high(40-70) so i have since down a good sized water change.Usually i have notice with good water perameters these things fix them selves...but just i cause it get worse i would like to hear some opinions.....and pleez like i said try and leave the QT option out.