The 3ppm come from the rowaphos website where it states 100ml removes 3ppm from 100 usg of saltwater. My tank reading is usually around .25 but I am assuming the rest is being used up. I also don't have a HANA so its not the most acurate reading.
I picked up my package and the reactor is a lot bigger than I was expecting. The reactor instructions say to use a minimum depth 2" which is going to be close to 100ml.
So I have a couple of questions. Can I get away with less than the minimum 2" depth? Would that be a hard rule or can I try less and see if I can get the correct flow? The reactor has sponges that are rather coarse. Do I put the the gfo directly on the sponge or add a layer of filter floss? The instructions for the rowaphos say it can be sandwitched between layers of filter floss but I don't think that was for use in a reactor.
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72g bowfront, t5.
29g JBJ nano cube, ATI 26HD.
Livestock: clown fish, chromis, coral beauty.
Corals: Toadstool, maze brain, candy cane, mushrooms (purple & green hairy), button polyps, green zoas, GSP.
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