Pig nose or fly river turtles are fully aquatic they don't need land they mainly eat fruit and vegetables but have been known to take out the occasional tankmate and they cost alot of money if you can find one
I have already said my piece about the SW and I am sure you know of the compatibility issues
that being said....
Very nice job on the aquascaping of the rock and corals lookin good
it sucks i really need to wait for the tank to balance itself properly for most of my SW stuff or the $$$ spent would be 5X...with freshwater, I always waited like 2 weeks for the tank to cycle and put whatever I want in and never really lost anything... From what I am told over and over, I need to be a little more patient with this... I just bought a 175g bowfront that will be up by spring