Best is to separate the pair for about a week then introduce them into the spawning tank at the same time. Spawning tank should have something on the bottom to hide the eggs (i.e. marbles or an eggcrate grid) and a section of thick, fine needled plants for the pair to spawn in.
(Separating the pair will entice them to spawn A.S.A.P. once back together. They should be removed once spawning has occured.)
Feel free to PM me if you have any other questions
Hope this helps.