What Matt said. Forget about tangs. Thats the last fish to go in there. Foxface/rabbits are good but I would QT them in a separate tank first if
you decide on that. Most of them look pretty beat up when they come in and unless they are all healed up and over being totally freaked out
over shipping, you're likely to have ick troubles.
There's a couple good lfs in Austin. Michael at Austin Aquariums should be able to get some of the mexican turbos for you. They are big round snails,
not the cone shaped astreas. They eat a little more than the astreas and they can be a little clumbsy at times.