Well I'm down to go whenever anyone in the area would like. I actually don't get free tickets until way late in my volunteering tenure.. also, I don't get to take people into the backup areas without express written consent of the management, which is hard to get (lame). But I'm down to meet up with fellow RSers!
Anyway, in terms of my tank, I've made about a million and a half changes in the past few weeks and haven't been keeping my thread updated. I'm going to do this in a few chunks as to not write a novel.
Long story short, I went ballistic in my quest to conquer my nutrient issue and made some radical changes. I upgraded my stand so I could fit a larger sump. I bought a decent needlewheel skimmer to go in the larger sump. I started dosing an organic carbon source again, and all these changes are paying off big time. The algae is literally melting off the rocks. It's funny, I did 50% water changes every 3 days for weeks straight, and I've seen more progress in the first 3 days of carbon dosing than I did that month of 50% water changes.
I think all this points to phosphates bound to my live rock as being the culprit. My hypothesis is that the organic carbon dosing is using nearly all of the nitrates as they become available, which is limiting algae growth based on nitrogen. After nearly all the algae is gone from the rocks, I'm going to start testing phosphates. I expect then I'll see substantial phosphate levels. Since organic carbon dosing removes far more nitrogen than it does phosphorus, even though the phosphates are in the water, they likely will not be used for algal growth because of the lack of nitrogen. At any rate, that's down the line after the nuisance algae has almost completely receded.
For today, I'm going to share some updates on the stand I built. I posted earlier in the thread about how I built a stand out of 2x4s for my QT tank. I decided to finish the stand and move my main DT to it so that I could fit a larger tank underneath for a sump. My old stand would only hold a bucket, which didn't have enough room for a decent skimmer.
Here is the original stand, unfinished:
I added some 1/4" plywood, trim, and filled the seams (rather inexpertly, I admit, but I was just trying to get things done):
Then I just primed and painted with some semigloss black. It turned out pretty well actually, you can see a lot of the grain:
And finally, the DT on the new stand:
There are more updates to cover, including the new skimmer and my unexpected transition to T5 lighting. But like I said, I'm keeping the updates relatively short, so that's all for today.