ok, time for a bit of an update as we had some "interesting" events with our Vortecs over the weekend, plus some livestock occurrences. No new pictures yet, but when the new bulbs get here tomorrow expect some comparison and also side by side shots (IE: only changing one bulb out to compare the Usions and ACs for intensity and color)
For now here is the update.
This Saturday (while talking to Scott on the phone about the new skimmer body he is working on for us), it appears that one of our Vortecs "ran away" and turned up to 100%/full speed (from a setting of about 75%, give or take). I really cannot tell the exact speed it went to since there is no way to measure it outside of the reaction of your tank's environment. In our case it stirred up a huge sand storm, buried a clam, a couple of rather rare/expensive chalices (Bazooka Joe and Tubs Rasta (Think it was from Tubs)) and just caused general water quality issues. It happened during the afternoon, when nothing else was going on within the tank (IE: no maintenance, etc). I originally thought that a fish had gone to digging except that once I got the tank cleared enough to see what was going on I could see a 2" trough in our sand bed and the sand granules on the surface of that trough were moving with the current (which is not normal for our tank). It is important to note that this has all been set up and running (With the current speed settings) for several months. About 1 month ago I cleaned this particular wet end because it kept stalling. The cleaning did not help with the stalling. I throttled back this one Vortec to about 50% (give or take) and everything again quieted down within the tank. Curiously enough that Vortec has not stalled since then. I find that odd since it usually takes turning a pump speed
up to get it to stop stalling, not down
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Luckily I was home when it happened, so that I could minimze impact and not lose any livestock (that I am aware of). I shudder to think what would have happened if we had been away for the day, or worse, the whole weekend.
The other thing that has happened was our RBTA took to going walk-about. He started this towards the middle of last week (and the sand storm didn't help his stabilty any). We had him more or less segregated on a rock (not touching any of our SPS encrusted base rock) and we turned that rock and moved it a bit to force the nem to travel across sand if it truly wanted to exodus the rock. So far it seems to be holding on the front bottom of the rock.
We also had a bit of an explosion of aiptasia. Right now I am attributing this to the water quality issues introduced by our plumbing changes. Once we get the new skimmer body we should be back in business. But that will still leave the aip's to deal with. Right now I am considering a CBB. I believe that I read Jonathan added one to his tank a while back, but I honestly don't remember the results. I will try to read back through his thread later on to see if i can dig out that information
That is about it for the updates so far. If anyone has any experiences or advice, please share
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