Pearl danio They live in a tropical climate with water with a 6.0 – 8.0 pH, a water hardness of up to 5 – 19 dGH, and a temperature range of 68–77 °F (20–25 °C). Their diet consists mostly of exogenous insects and zooplankton. The pearl danio is an egglayer. Golden varieties are often seen in shops; these are in reality semi-albino fish. The blue-redstripe danio ("D. a. var. pulcher") and the Kedah danio ("D. a. var. tweediei") were considered distinct, but most taxonomic authorities consider them to be varieties of the pearl danio. Pearl danio The pearl danio ("Danio albolineatus") is
What Is and What Should Never Be (Supernatural) What Is and What Should Never Be (Supernatural) "What Is and What Should Never Be" is the twentieth episode of the paranormal drama television series "Supernatural"s second season. It was first broadcast on May 3, 2007 on The CW. The narrative follows series protagonist Dean Winchester (Jensen Ackles) who finds himself in an alternate reality after a confrontation with a djinn . The creature appears to have fulfilled Dean's greatest wish: that his mother had not been killed when he was a child. Dean is happy in the new world until it becomes apparent that his previous work as a