Just messin with ya!....I really noticed the water stains because I took some photos of one of my tanks earlier and the stains on it showed just the same.They kick too much water out due to how the the sump is set up so when I feed they kick water out all over so I don't bother much with keeping up on the glass Cuz that would be a daily chore I do it usually after water changes but that's the least of my worries rt now