Reef Tank DIY - For Dummies

[Dash]

Plumbing is done! We also put the top trim onto the stand so I can be sure it is all fitting nicely before the tank is filled and immoveable. I am not 100% sure that I should paint the stand black. Wondering if it will be too much of a huge black thing. However, I don't have any other furniture that is white in this room so that wouldn't look right either.

Untitled by Magdaline Chu, on Flickr

No more ugly white connector!
Untitled by Magdaline Chu, on Flickr

I'm not sure about the next step. I need to test if the pipes are water tight but if I fill the whole tank with water, I won't be able to push it back against the wall to its final spot. I was thinking I can just add enough water to overflow to have water drain into sump. Or is this not testing it properly?