Not sure if this would apply to anyone right now. If you are switching to a new tank and starting out with all new "dead" sand while still using the same water and rick that was in your existing tank there is a way to seed the sand easily. Take two stockings put some live sand crushed coral whatever, put about 1 cup in each one tie a knot in each one. Place one at one end of the tank and the other at the other end of the tank. Leave them there for two weeks then throw them away. Poof, seeded sand! I did this when I upgraded from my 55 to 125, made the switch all in one day and put all the coral and fish in the same day no problems at all!