I’m not sure about the carbon stack on top.. I run zeolites in a reactor and Randy has me guessing if it’s useful or not haha! I followed the foot steps of Sunny x and I know without a doubt it gives bacteria a nice place to cultivate as when you shake the zeolites and pump the reactor it will cloud up your tank. I have carbon in a separate reactor on my tank not mixed with the zeolites.. my nutrients stay low as my tank processes them really fast when I spike them with bacteria, aminos and phosphates to feed my corals. I myself haven’t used the aqua forest line but I know @Perry is very familiar with them. Im sure in the end its all the same stuff with a different label lol.. there’s a thread floating around and a guy put some bottled bac under a microscope and it seems zeobak was the only one alive straight out of the bottle.. from what I’m gathering is mb7 and other bottled back is spores that come alive when added to your tank but I can’t confirm nor deny that as chemistry isn’t my cup of tea haha! As for the gut loaded bacteria I referred to we have been using different bottled bacteria, mixing it with aminos and reef roids “for phosphate” and enzymes and making a culture that sits for x amount of time and then feeding the corals with it.Thanks Troylee, I am still learning and having trouble finding detailed information on those using similar methods. There are so many different versions, just trying to tweak mine to handle my nutrient load from my fish and feeding. Great if we can put it here or if you have some specific places that are useful, glad to go there as well. Mainly trying to figure out if that stack I used is useful or if the carbon on top hurts, any feedback.