hello, i just wanted to let people in on this experiment i did last night. i brewed some earthworm casting compost tea. i only brewed 2 gallons. put around a cup n a half castings bout a fourth cup mollasses. and two cap fulls of tiger bloom less than 24hours later have foamy head on top. so tiger bloom deffinately does not kill the microbes. i dont have a microscope yet. but ive tried making tea with tap water even tried evaporating the chlorine and it doesnt foam up . so im taking it that if it foams up, its got the microbes. if not its dead. i use RO water and thats the only thing that works for me to make tea. artisian well water didnt work either. ph went too high and no foam. justthought id share that because i read this thread around two weeks ago and thought " ill do an experiment with it. see if microbes will even breed if the ff tiger bloom is added to the brew. i was happy to find foam this morning.