How can I get the glass to be cleaner? You can't knotice anything normaly.. its just water marks...
I usually clean the outside with RO water and a towel...
I am afraid to use glass cleaner near the tank...
Try vinegar and water....personally I just use windex, but I hear vinegar and water wokrs just as well....and instead of using paper towel, try newspaper, I know it sounds weird, but it works REALLY well Good luck, Cowboy!
I use windex and some paper towels. Just spray the stuff at the bottom and spread it towards the top so you don't have to worry about getting any in the tank.