Either favia or favites can do well placed on the sand bed. To me yours appears to be some type of favia...favites share common walls between the corallites(polyps)...favia have seperate wall structures...but in either case it should do well on the sand bed. As a rule they tend to favor high levels of light so depending on your lighting you may need to place it higher...but with adaquate lighting it should do well on the sand bed. :thinking: