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Old 04-01-2007, 09:34 PM   #1
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Hmmmm...some sort of anemone???

Yea...rearranged some rock...found this.

Any ideas? Bad or good? I know there are different types of aiptasia. Its so close to coloring of the rock it was hard to get a decent pic.

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Old 04-01-2007, 09:44 PM   #2
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Hmm, looks like some type of cup coral. Can you tell if it has a stoney base? If it closes up, it should be visible.
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Old 04-01-2007, 09:49 PM   #3
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It did pull in, but I dont think it had a stony skeleton. It is possible though. I guess I could go fiddle with it and try to make it close.
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Old 04-01-2007, 11:18 PM   #4
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It looks like a cup coral to me from that photo but photos can be deceiving. Something along the lines of Astrangia sp. Or maybe Balanophyllia sp. or Paracyathus sp. just to throw some ideas out there. Since you said you were moving things around, I'd probably put it back in a shaded area and just enjoy it. You may be able to see a skeleton (if it has one) by feeding it a bit of mysid or fishfood. I'm assuming this isn't new rock and this rock/critter has been around awhile? It's very pretty.
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Old 04-01-2007, 11:24 PM   #5
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Yes, its a pretty old rock, I actually need to take it out and replace it sometime soon, but I may keep it just for looks if its not a threat. Its in a shaded but visible area now. It looks like a Paracyathus with brown dots on the tentacles.
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Old 04-01-2007, 11:43 PM   #6
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Just wondering why you would want take the rock out and replace it sometime soon?
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Old 04-02-2007, 11:35 AM   #7
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Quote:
Originally Posted by Ziggy953
Just wondering why you would want take the rock out and replace it sometime soon?
Me too.....Beautiful critter, BTW.
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Old 04-02-2007, 12:35 PM   #8
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Good established/seasoned rocks are the building blocks of a great reef tank IMO. Unless there is something terribly wrong with the rock that threatens your entire tank and can't be dealt with by any means, I wouldn't replace it. ???
As for your critter, I wouldn't be overly concerned but would simply enjoy it.
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Old 04-02-2007, 01:20 PM   #9
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Ive read...3 reef chemistry books by different marine biologists and they all recommend replacing LR every 3-5 years along with your sand. They say thier studies show decrease in readily soluble biominerals and alkalinity. As well as to add biodiversity to your tank.

These studies are becoming more apparent to me as my rocks are 4 years old and I am showing some very very odd reading with my test kits lately. Low pH, normal kH...

Using ro/di with reef crystals, everything is perfect when i test the salt mix after 24 hours. 8.2ph, ~420ppm ca, ~214ppm kh

So I have been doing 15% water changes weekly to try and buffer my low ph of 7.8 but no dice...within 24hours the ph is still at 7.8

I did however send and email to one of the biologist in hopes they could clear the water ( lol ) about my situation in relation to old live rock and sand. I hope they respond.
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Old 04-02-2007, 04:30 PM   #10
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My LR is 9 yrs old and I dont have any plans to replace. I`d like to see any answer you get Marc.
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