D'oh... I guess I lied... time for an upgrade!
In my defense, I'm only upgrading because I came across a bargain I couldn't pass up. The tank is 18 gallons, and there's a 15 gallon sump. Very nice, and this allows me to use my old (well, a year old, but unused for months
) coralife 24" fixture for it. Considering that I was going to spend 120$ to get a 20" fixture, which is more or less what this new setup cost me, it would have been pretty stupid to pass up this new tank.
I'm probably going to run both tanks simultaneously, until the new tank cycled. My LR guy said that it wouldn't cycle given that the rock is very established, but I don't want to risk it. I'm going to go with black sand this time (woohoo!), and probably get another 5-10 lbs of LR.
This one has a sump, over which my current light fixture fits perfectly... so it's fuge time! I may transfer some of my live sand into the ruge, with some LR / rubble, some cheato... whatever, I'll see what I can throw into there.
I may end up keeping my 8 gallon set up, too. Or sell it is a full set up... It seems a shame to take it apart, but my new tank will hopefully be even nicer.
Aaand, the shining star of this whole upgrade, I will get a royal gramma... the love of my life!
Wahoo!