I have been cycling since October, i know right before cold weather, but i do not want to get fish until i get this science part down.  I bought maxi crop so I could begin growing veggies.  Well my stale and beets started strong and my son got on the GB and messed with the spinach.  Any ways, i am pretty sure this past week killed my kale (my tank froze). BUt I do not have ammonia present, and my…