As a former user of All For Reef but now using ESV 2 Part (not by choice but because of shipping errors that were beyond my control), I was curious to compare the trace element makeup in these 2 additives. I miss the simplicity and ease of dosing just one part with the AFR but it has been my observation that my corals and coralline are doing a little better with the ESV. Don’t get me wrong though, I was still getting good results with the AFR. What I found is that both are almost identical with the exception of potassium and rubidium, which are found in ESV but not AFR. Would you say that this would be a good enough reason, among other things, to stick with ESV or should I go back to AFR to make my tank maintenance a little easier?