ok its prob ro
water..i would make sure it is when you do your next change. it may be worth while and save you some money to purchase your own ro
unit. they are not that expensive and I am funny about buying water. if you have your own unit you know when the filters are changed and you always have the water... and im assuming your using reg tap water to top off?
50 gal reef,sump,reef octopus 110,solar flare 108 watt, carbon gfo duel reactor.