2nd NFS Share only (16mb)

I have a vSphere 6.5 lab environment setup (all physical hardware).

I successfully added my 1st NFS Share to my datastore and created a couple VM's just fine.

I wanted to add a 2nd NFS Share to the datastore for ISO's only, but when I added  the NFS Share only 16mb of space showed up. 

One thing to add is that both NFS Share 1 & 2 are on the same Volume on my NAS (QNAP TS-251A). Did the first NFS Share allocate itself to the whole Volume space? The Volume size that I created in the NAS is 1TB.