Hi i would like to start a reef tank (15 gallons) and i’m looking to buy a rodi filter so i dont need to buy rodi water from my lfs. I would need to make like 4/5 gallons a week i think for top off and water changes. The thing is i have really high tds readings like 450/40 tds would a 4 stage rodi filter make it 0 or near to zero so its reef safe? The picture is the one i’m looking at currently. I know the ro membrane is going to be changed a lot but i dont need that much water so it compensates right? Or am i missing something? Thank you in advance!!
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