I am preparing to start a fish less cycle with my 30G freshwater tank and purchased some ACE Hardware Ammonia Janitorial Strength Formula which seems to be the most recommended on this forum. It didn't foam when shaken but i thought i would do the test with a glass and diluted in water to see if it felt slippery. When i performed this test it did feel slippery so now i am confused as to whether i should use it or not? I know it is highly recommended but this has caused me some concern. Any advice would be appreciated.