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- Sep 19, 2017
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I am sure this has been discussed 50k times on this site but I will still ask ha! I am setting up a basic frag tank since I have all the pieces parts laying around and a nano reef that is exploding at the seems with coral. If i use the water from water changes from my main tank and dump that into the frag tank along with some bio filter (those porus cubes) from my main tank into the frag should it be good to go then. I would imagine since the water is already cycled and so is the filter it shoudnt have any spike or anything. Thoughts?


