reef ready tank - Help!!

[kriss k]

Ok.. I just bought a 55 gal reef ready Oceanic tank with a prefilter already built in. The question is what goes where??? The directions given really bite.

I have the wet/dry filter that goes under the stand. I know that one tube goes from the wet/dry filter to one of the 2 holes in the bottom of my tank. But, what is the other hole for??? Thanks for any help. I would like to set up tonight. Kriss

 

[kriss k]

I found out what is wrong. I am missing fittings to the internal overflow box. DOes anyone know if Home Depot or Lowe's will carry fittings that I can use??