I don't have any hate for Marcel, never spoke to him, I like his preliminary work and would like him to fill in the gaps on his website if he can.
One thing is clear though YOU have zero ability to answer any of my detailed questions about Marcel's work and he doesn't participate in your facebook group. I should know, I tried asking you questions regularly for a couple months in the group chat and everytime it was an excercise in futility as you simply don't know, but your enormous elephant sized ego pretends otherwise.
After spending far too long in your facebook group and chat I realized you have very weak ability and experience to diagnose plant deficiencies.
Tropica Specialized is very lean in Phosphorus and Potassium, the ratios of these compares to Nitrogen is low compared to all other fertilizers.
After I sent you my plant photos regularly (such as Ludwigia Palustris), your advice was continuously HORRIBLE, my plants were suffering from deficiencies, and your advice was try to LOWER dosing and that I have a Cu Toxicity from my tap water. Everything you suggested was dead wrong over and over again for weeks.
I called you out and I said "You are just guessing and your guess is no better than mine" your ego couldn't handle it so you banned me. I won't lose any sleep over not participating in your useless chat group.
Its a good thing Vin Kutty was able to put me on the right track(he pointed out the likely P deficiency right away from the photos) and switching from Tropica to PPS-PRO has turned the tank around.
I stopped answering your questions when you were not even following the exact advice, for example: your tank water had 10 ppm Mg, I said not to add more, you went ahead and added more anyway, so I saw no reason to help you further, but that was not the main reason, you would disrespect all the other members as well. You constantly claimed Marcel is wrong, am wrong, whatever I said was false etc. I wasn't even sure how you lasted in the group for so long. I know you claim to be a chemist guy, but you failed to understand the basic concept of fertilizer and couldn't even grow a simple plant properly. You were struggling with simple plant and wanted to fix the issues, I pointed you to try tropica, you said you failed with that too, tropica is one of the best brand and many use it, only you seems to be struggling with it, you keeping on posting pics of plant which appear to either look really bad or not growing well at all, you suddenly start changing many variables at once, this was the main problem with your approach. You switched to pps pro and at the same time you are saying you added more po4, now how you know which is helping, pps or po4? You were given all the advice including adding more Po4 as well, but you were changing everything so fast, you were getting mixed results every day. One day you thought it was iron deficiency, next day Mg, then next day Po4, I told you to have patience and give it a at least 2 weeks before you change anything. From the group, it seems like you were the only one who was struggling, majority of people were growing plant very well, including those who used tropica or tropica clone, look at Tim or Evan tanks for example.
Regarding the question you asked me, here's an example of your question: my this plant is suffering from deficiencies, tell me what is it?
My answer was, its impossible to tell the difference between deficiencies or toxicity as they both resemble similar symptoms, we looked at your water report and Cu was bit high in your tap, I suggested you add something which can reduce the heavy metals in water, I suggested try RO water, I suggested reduce or cut the micro and make your own, I suggested playing with fertilizer as you won't achieve everything in one day, you didn't listen to a single advice and instead your answer was something like, am wrong, am false, marcel is wrong, his website is false etc.
Look at the forum here with tons of thread, people dose excess ferts and yet they claimed that they are suffering from plant deficiencies. Some said its co2, some says add more of this or that, you are almost of the same page.
I have answered all your questions as I would answer to others, but you dont have patience and want imidate results.
Like I said, you will look for every reason to make me look bad, even though i tried to help you and am still willing to help you.