So you've decided your ammonia levels are due to the amazonia, I still think if you add more BB (beneficial bacteria) it will match the bioload and live. I think you need more BB to speed up the process. I've just never seen ammonia in my dirted tanks, cycles in a few days usually. Did your water look murky/opaque muddy for a day or two? What BB did you add, from a bottle? I know that nitrifying bacteria in a bottle works better than 'cycle'.
Are you adding NO3 by fertilizing? If so, I would say you could skip this one for a bit ;P What is your PH?
It looks like you have enough plants to use up extra water column nutrients, I can't figure anything else to ask or say right now.