Acropora and water motion

galleon

New member
A picture is worth...

6715938419_0d94e2263d_b.jpg
 
Nice! Whered u find that?

All i need to do is hire someone to dump a bucket of water in my tank every 30 seconds! Lol
 
Thats a nice table that more then likely is exposed to direct sunlight at low tide.
 
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What place did you take this picture? Must have been awsome to see that in real life. Did you get a frag of it?
 
More likely an A. humilis or A. gemmifera... the OP can't get enough of those.

Sorry I have to disagree. That's a hyacinthus, or a cytherea, or another "tabling" upper reef Acropora

Humilis, or a A gem have a VERY different growth pattern, and coralite shape.

cytherea
20-01M.jpg



Hyacinthus
36-02M.jpg


Humilis
35-02.jpg


Gemmifara
30-03.jpg
 
Tang Salad,

That is NOT Humilis or Gemmifara. Coralite shape and structure is completely different! I have owned both corals in the past and they are not easy to keep.
They are one of the most difficult to keep. Thus my comments: How they make it in those extreme conditions is beyond me." Many times it's water volume.
And it looks like there's the original OP's Porites right next to that A. Humilis!
 
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Some posts have been removed from this thread. Lets not bring religious discussion into this. :)

Thanks,
-Dino
RC MOD
 
The fact is none of us can tell which species of Acropora those might be because none of us have a specimen in front of us. Trying to pin down species based on growth form is a fool's errand. Growth form is mainly a function of water movement: species X grown in one environment can look more like species Y if grown in another. The opposite is also true. This is part of the reason the concept of speciation in coral taxonomy is malleable. The other reason we cannot identify which species these are is that in coral taxonomy, species are not always described as discrete units, as per Veron's discussion of reticulate evolution.
 
Oh man I was wonder what happened to my post. Sorry Mods. The types of conditions and the amount of heavy have flow that these corals can withstand is mother nature at her best.
 
Tang's point is well taken. While I can say the imaged coral is definitely not humilis or gemmifera, one thing I see in the hobby as I look around is rampant assumptions/throwing names around about species.

Here's a gemmifera:

6716138799_5d089c529b_b.jpg
 
No, Galleon, you are wrong. I've seen them in aquariums and Gemmifera are always brown. (And they usually have little specs of white where the tissue is falling off.)

Great pic... love the little starbursts.
 
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