In my case, the best cure for post-loss depression (after having a good cry) is to move forward. I've started cleaning and storing the rock and sand from the defunct 125g so that I can get the 125 out of the way and recomission my retired 50g glass. The reef will be moved to that when the tank's ready, and the 20g will be turned into a fuge (which reminds me - I need to buy a HOB overflow and a return pump). The proportionately massive increase in water volume should help me in keeping my corals healthy; it's far too easy for parameters to swing in the 20. I can't keep up with it.
The 50g will remain in use until I can save up enough for a new 125g.
You're probably wondering by now why I'm cleaning the rock. The water it's been sitting in is loaded with nitrate and phosphate (1ppm phosphate and like 80 nitrate AFTER a nearly complete water change!), there's gray silt stuck to it, and everything's dead with the exception of the occasional aiptasia (them pain-in-the-butts are hardy!!) which I obviously don't want. I'm soaking and then rinsing the rock in fresh water, and then letting it dry out.
I miss my little basslet. Mom says she'll get me a new one soon (he was a birthday present to begin with) but obviously it won't be the little guy I felt like a mommy to.