Tested my Ammonia in my tank at 4 weeks now......Ammonia reading was really high, like off the charts high. Substrate is ADA Amazonia II which does leech ammonia. My question is even if other nutrients are good, will really high ammonia levels kill plants? I decided to check ammonia when I noticed my water getting really cloudy. I have quite a few plants basically just dying at this point, all turning a nice shade of brown. There is lots of co2 and ferts in the tank trust me. I am doing EI dosing pretty much.