A method of killing Aiptasia and Majana anemones in aquariums comprises
filling a dispenser with an anemone killing mixture, comprising purified
water, and effective amounts of calcium hydroxide and non-iodized salt,
placing a tip of the filled dispenser near a mouth of an anemone and
dispensing a small amount of the mixture such that it is consumed by the
anemone. An anemone killing mixture comprises effective amounts of
calcium hydroxide and non-iodized salt dissolved into and mixed in
boiling purified water.