Basic aquarium salt â Sodium chloride. 1  Aquarium salt is exclusively found in aquarium shops and fish sections of general stores. 2  It is the cheapest of all fish salts used. 3  It can also be found as non-iodised salt, table salt or even ice cream salt. It is basically just salt that we use in our daily lives.
Best Answer: At the point of conception. Depending upon which chromosome that the embryo is implanted with from the father determines the sex of the embryo. If the father's sperm contains an X chromosome, the embryo will be female. If the father's sperm contains a Y chromosome, The embryo will be Male. Source(s):
Embryo implantation in humans. After fertilization the human embryo begins a 4 day long journey down the fallopian tube and into the uterus. When the embryo reaches the blastocyst stage it develops two distinct populations of cells. The outer cell mass,called the trophectoderm, and the inner cell mass.