going from crushed coral to live sand

[gmoney27]

I recently bought a used aquarium its semi stocked already has some hermits , snails and one damsel. Im just gonna reuse the full setup including water etc. My question if I replace the CC with live sand and then add the tanks water will the sand throw off the current water quality drasticly?
If so what test kits should I have and additives should I get. Im really new so please no flames.
Thanks in advance for any help.

 

[hot883]

Save as much of the water as possible when you remove it. DO not stir or bother the cc until you get as much of the water out. Have some new mixed aged salt water handy to use as filler when you do replace the water.
Drain and retain the water
remove all inhabitants placing them in removed tank water
add heater and power head to fish container
only use NEW containers or dedicated FISH containers to hold water, lr, and fish
I PERSONALLY WOULD GET THE DAMSEL OUT AND KEEP HIM OUT while it's easy. They get mean and will be very hard to catch when you get everything back together later
Hope tahat helps. Bottom line is don't disturb the cc as much as possible until you get all the water out you can.