Unlike most people here I don't believe that "balance" is the secret to success. The secret to success, for "high tech", which I believe actually means high light tanks, is to follow just the sequence that I mentioned. You don't need to balance your fertilizing with anything, just maintain at least enough of every needed element in the water so that is no longer something to work on. You don't need to balance your light with anything, just acknowledge that high light means you have to get the CO2 system just right, and that is very hard to do, so it is best to get the other stuff out of the way first, then devote all of your attention to CO2.
Getting the CO2 right has to start by having other stuff right - very good water circulation throughout the tank, very good dissolved oxygen level in the water, which means keeping the water surface rippled all over, and for really high light, also using other methods to keep a maximum of oxygen in the water. And, it means knowing how to maintain a clean system and doing that maintenance regularly. Once you get that stuff out of the way, you know that all that is left is CO2.
When I tried to do this I wasn't successful because I just wasn't willing to devote that much attention on such a regular basis to all of those details. No matter how many times I looked at Tom Barr's very successful high light tanks, I never managed to duplicate the effort he put into it. But, each time I looked, I learned more about what I would have to do before I could hope to succeed. Since it became clear that I wasn't that dedicated to doing that I switched to low light tanks, which better suited my life style and willingness to provide the necessary care. Now, I enjoy the hobby a lot more.