You are not ignored, just conversation becomes too technical.
In my opinion, an instalation of CO2 with diffuser, bubble counter and controler for selenoid will solve your problem. Thre are many options for this. You may add liquid carbon, additionaly. Bucephalandra is not a difficult plant. It is used in paludarium as well as in wabi kusa and is doing well. I have Bucephalandra in one of my nano and, for CO2, I am using the rudimentary, simple Tropica System 60 !? Can you imagine ? And is doing just fine, right now is blooming!