About time for an update!
Upgraded the skimmer in December to a "Super Reef Octopus 3000" skimmer. It's a noisy beast, but it's able to handle the small fluctuations in the water level in the sump without fussing, and pulls out plenty of foul-smelling sludge. A 36" blue reefbrite strip was added to one side of the peninsula on a trial basis ... and I'm pretty sure it's going to get a partner on the other side of the tank soon enough.
And, the lazy reef just got lazier.
Throughout my ENTIRE reefing career, I've let the RO/DI run for a day or two, then added salt and allowed that to mix for at least a day before doing a WC. After the alk snowstorm last fall, I mixed up an emergency batch of saltwater with tap water, that had only been mixed for ~30 minutes. No ill effects. I looked out the window for lightning to strike, and nothing.... fast forward a bit, and it's time to change all the filters in the RO/DI unit, and most of my sps were already dead (more on that in a bit). So, to heck with it, I said. I've been doing water changes with whatever comes out of the kitchen faucet and ~12hrs of mixing for 2 months now and so far so good...
I spent much of 2010 trying to get alk stable, among other issues I'm sure. At some point the two part just "stopped working" ... the alk/ca/mag levels were all fine, but the sps looked like poop. I don't know what was missing, but when in doubt, throw more equipment at it, right?
So I installed the calcium reactor, twiddled with the controller and the pH probe and fought with it all to try to keep the alk at 8, "close to nsw levels" they say. The SPS continued to fizzle out. While I was out of town for xmas, alk drifted up to 9-9.5ish and I got back and wondered what crazy magic the pet sitter had done. There was COLOR on the remnant bits of acropora in the tank! I saw growth edges!
So 2011 begins with trying to keep alk at NINE, and some hope for being able to grow acropora again.
Unfortunately the birdsnests started a downhill slide after the alk-snowstorm incident and nothing I did seemed to slow it down. I'm hoping to be able to keep them again in the future too.