I don't mean any disrespect to ANYONE on this site... but how can you own a tank and not have a test kit? Hopefully they are not being purchased based on the advice of LFS !!! I learned from day one of posting on this site... a test kit is the window to any problem. Please, whomever you are, BUY A DECENT TEST KIT !! Ammonia, PH, Nitrites and Nitrates are the basic test kits needed to monitor your tank.
All you moderators and "senior" posters..... correct me if I'm wrong!
PS... JCRUNK... not directed at you.. please don't be offended.