I'm not having any filtration issues. I have to add nitrate and phosphate, without running extra stuff. But there are two different core 7 kits, see below. I do not want to carbon dose, and with what I have Im not sure where I fall. Assuming the full method. Just want to verify that, and that there are no carbon dosing elements inside one or the other of the kits.Scott.h... A DOS and the Core 7 is all you need to get started. After you get it "dialed in" send your test and Triton will recommend what can be done to improve the water of your reef. Up to you if you want to do it (I do) or not. I use ESV charcoal in a reactor and don't use any GFO (I find GFO to be more trouble than its worth) works best for me. I'm not a "Triton fanatic " and my tank is set up different than the perfect Triton Method because of my Eshopps R200 sump which I made into a sort of a Triton/Berlin hybrid. If you feel like looking at the few posts I made you can see I had my issues being a saltwater beginner which Triton seem to solve at the moment.
http://uniquecorals.com/dry-goods/triton/triton-core-7-reef-supplements.html
http://uniquecorals.com/dry-goods/triton/triton-base-elementz-core-7.html