odd LTA behavior

ransomed4ever

New member
Just wondering if anyone with more nem experience than me might have some insight into my situation. Iv'e had this LTA for close to 3 years. In the past it has survived pc lighting, a tangle with a koralia, and a 3 day tank transfer. It has been in its current postion under 2x250 watt halides and 2x110 VHOs for close to 6 months now.
Water prams are
temp. 80
salinity 1.025
pH. 8.1
calcium 520 (a little high, but where tank is usually)
alk. 6 (I know its low, slowly bringing it up, but low isn't unusual in my tank)
po4. 0 ( know I have some because of GHA)
nitrate. .2
The only change I've made recently was to add a small birdsnest frag about a month ago.

problem is it went from this
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to this
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in the 8 hours I was at work 2 days ago.
I came home today and it had unburied itself and was starting up the rockwork. I picked it up and it was still sticky, no damage anywhere, and it didn't smell. So, I buried it back in the sand where it was, and as I am typing it has unburied itself again and is starting on the move. I know these things are usually from stress, but nothing visible or measureable has changed. Is my nem just psycho?
 
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