I would like to give credit to the OP for starting this thread and being willing to submit to so much scrutiny. I don't know that I would be willing. Not for fish at least. Maybe other things.
I think what you propose sounds a bit more like a self sustaining tank than a balanced aquarium. "Balanced" can mean a lot of different things given the context its used in. I think there are may ways to balance an aquarium.
One thing that is difficult for me is the topic of hardy fish. You recommend we use hardy fish, such as guppies. But you obtained fish that were already "adapted" for decades. The guppies we have available to us will not be so adapted as the ones you used. I is likely that we would have very differing results because of that one fact. It also means that it would take those same decades for me to actually obtain the same results as you, not in the time it would take to do this method of cycling.
In statistics (assuming we have a curve that approximates normal) the further from the mean any one point of data is the less likely it is to occur. With as many special circumstances this tank requires (hardy fish, specific plants, delicate balance) it is far from the mean. It also takes either 100's of repetitions or a very large number of data to really make a true and accurate statement about anything. All the other methods listed (fishless cycle, fish in cycle in a standard aquarium set up, seeded material cycle, planted tank with filter) have 1000's of examples to drawn on for the credence given them. One "sucessfull tank does not a proper set up make. Until many of us can with (relative) ease reproduce what you did, it will be a little hard to stomach. I also don't think many of us will be willing to try because some of what you say goes against what we have seen and learned through much experience.
I have no problems with people trying experiments like this, so long as they are done responsible and the claims are realistic. In the end I am glad that I can keep my aquarium how I want, and short of a little criticism or praise, there is little anyone can do about it.
I think what you propose sounds a bit more like a self sustaining tank than a balanced aquarium. "Balanced" can mean a lot of different things given the context its used in. I think there are may ways to balance an aquarium.
One thing that is difficult for me is the topic of hardy fish. You recommend we use hardy fish, such as guppies. But you obtained fish that were already "adapted" for decades. The guppies we have available to us will not be so adapted as the ones you used. I is likely that we would have very differing results because of that one fact. It also means that it would take those same decades for me to actually obtain the same results as you, not in the time it would take to do this method of cycling.
In statistics (assuming we have a curve that approximates normal) the further from the mean any one point of data is the less likely it is to occur. With as many special circumstances this tank requires (hardy fish, specific plants, delicate balance) it is far from the mean. It also takes either 100's of repetitions or a very large number of data to really make a true and accurate statement about anything. All the other methods listed (fishless cycle, fish in cycle in a standard aquarium set up, seeded material cycle, planted tank with filter) have 1000's of examples to drawn on for the credence given them. One "sucessfull tank does not a proper set up make. Until many of us can with (relative) ease reproduce what you did, it will be a little hard to stomach. I also don't think many of us will be willing to try because some of what you say goes against what we have seen and learned through much experience.
I have no problems with people trying experiments like this, so long as they are done responsible and the claims are realistic. In the end I am glad that I can keep my aquarium how I want, and short of a little criticism or praise, there is little anyone can do about it.