Do I need to switch out my sand if I want to keep wrasses

[mvallee]

I am switching my 180 gallon from a mixed reef with a mix of reef safe and non reef safe fish to full reef with reef safe fish and want to add some wrasses. I am looking at flasher, fairy and leopards eventually. I like the hoevens or checkerboard wrasse as well but the description site to site on what they will not be safe with vary so the jury is still out

My tank is well established, full of life and has been very stable this year. I really want to add some wrasses but in the description it states for most of the species I would want to add, fine sand bed required.
The sand I bought came as a kit with the Marco rocks and is described as Beautiful white pure Aragonite (calcium carbonite) sand. Medium to coarse grain, perfect sand to start your Reef tank.
After a couple years of siphoning and tank maintenance I would say I mostly have a 2-3" bed of mostly coarse grain sand. Can I add fine sand to this tank say a bag a week to different sections? should I be removing the coarse as I add fine as it will end up getting mixed in?

I know there is a lot of wrasse keepers on here, hoping for some advice and direction on what would be best.
Thanks

 

[Technorch]

I would add a little bit at a time and if you really want to take out the coarse one, same thing I would do just a little bit at a time. I have been keeping flashers and they don't really go under the sand but hide/sleep under the rocks most of the time.

 

[cilyjr]

The wrasse are likely fine. The coarse stuff Marco sells is pretty fine compared to others