Just to add-on.
I agreed....if you just want to have a simple tank and some hardy fishes, nothing complicated (no corals, just some live rocks, you can purchase that Jire system and kick start this hobby for a 2ft tank.
But it's not enough to support anemones and some of the corals which you see in the display tank at Jire.
For that price of protein skimmer selling at $188 using air stone....you can get a Dymax or Jebo protein skimmer which only cost you between $50 - $90 and is much more powerful.
If you have the time, go and talk other shop owners like Reef Depot at Sin Ming Rd or Henry at Hong Leong Gardens@ West Coast and seek some advice.
My advice is shop around first b4 you rush into it.