wrasse questions

[mello]

I got a couple of wrasses I bought last week. Leopard and Fairy wrasse. Its been a week and I only seen the leopard twice both at night. The fairy wrasse I haven't seen yet. Been reading that wrasses tends to hide when first introduce. If any of you guys here had the same experience, how long did your wrasse hide before coming out? Just worried that they died already.
Thanks,