How much is too much?

[Peanut_Power]

Starting to plan for the 75gal display, I've got a few quick questions.

What depth sand bed can I safely get away with and still do a reef tank?

Reason I ask is the main fish we are planning on having in there are leopard wrasse and blue headed jawfish, both of which need a fairly deep sand bed.

Other question is, can you keep multiple species of leopard wrasse in a 75gal or would a single species be best?

 

[eatbreakfast]

Leopard wrasses really only need enough sand to cover their bodies at night when they bury, so 1.5" will suffice.

Jawfish need a little more, but can suffice with 2.5-3"

Multiple jawfish can usually be kept together in a 75g tank, but only one male, as they are intolerant of other males.