Doesn't have the magenta tips of a H. crisp or malu. The tentacle tips aren't really pointed like a LTA. The way it's sticking out of the rocks and the shape of the tentacles looks like an uninflated BTA to me, but you need to look at the base for sure. White base with prominent verrucae means H. crispa. Brown under the oral disk with white verrucae changing to white on the column and red on the foot would be LTA. Brown, tan, rust, red or pale purple on the base with no visible verrucae would mean its a BTA.
If it is a BTA, it looks pretty healthy based on the density of the tentacles.