After reading several posts, I decided to be a more responsible and start using store bought RO
fresh water for my topoffs and water changes vs. treated tap water. My nitrate readings hover around 40ppm despite all my best efforts with nitrites and ammonia at 0ppm. I'm thinking that the tap water could be the contributing factor since I changed my substrate from CC
to arganite sand. My question is, do I need to treat the bottled water with a tap water conditioner? It makes my protein skimmer go nuts.