No tangs, that tank is way too small, unless you plan to upgrade again soon, this was one of the biggest reasons I upgraded, And I wouldnt have 2 madarins in that tank either, they need quite a bit of rock to graze, I had 2, one did great, the other didnt. Im sure the one that lived was keeping the other one form eating, that was a learning mistake.
When I had that tank I was pretty much maxed out with the following list;
2 perculas
2 black and white clowns
lawnmower belnny
pigmy hawk fish
purple psuedo
3 pajama cardinals
3 chromis
CUC and 2 coral banded shrimps
Plus the 2 nems and all the coral my bio load was close to spiking, however I was not using that big *** wet dry filter I gave you, that may be able to handle more fo a bio load, I would start slow and watch your levels, youll know when your getting close to being completly stocked.