So i started adding this ammonia to start a fishless cycle...i thought it was safe since it says non detergent...however, i shook the bottle and i get a thin layer of bubbles that disappear after about 10 seconds. Im second guessing myself now that its safe to use in my new tank? I have also noticed that it seems diluted as i have to add 40mls to get 1ppm of ammonia in 75 gallons of water. Any thoughts would be appreciated