What is this Coral?

[CLINT]

it just looks more like an acan or micromussa type coral.if it is slimey and seems to shrink it will not be porites IMO.You would only notice individual polyps retract into the hard skeleton when touched if it is porites.Clint

[Myka]

I can see clearly in that last photo (with just the actinics on) with the polyps partially retracted that it is definately Porites.

No way is it Acan or Micro.

[Snappy]

It's not porites, that is actually a variety of Siderastrea sp. which is considered an LPS. They can extend fairly long sweepers at night so give it some room.

[Zoaelite]

Originally Posted by Snappy

It's not porites, that is actually a variety of Siderastrea sp. which is considered an LPS. They can extend fairly long sweepers at night so give it some room.

Its not an acan/micro 100%, I was leaning towards porites but Greg is usually right when it comes to coral ID'ing so I would go with it being a Siderastrea.
Levi

*EDIT*
This is what a Siderastrea Sp. looks like (Thanks to google)

[Oscar]

Originally Posted by Snappy

It's not porites, that is actually a variety of Siderastrea sp. which is considered an LPS. They can extend fairly long sweepers at night so give it some room.

I will have to check it for sweepers some evening, it does not look like it is capable of very long sweepers though.

[Snappy]

Originally Posted by Oscar

I will have to check it for sweepers some evening, it does not look like it is capable of very long sweepers though.

Many corals are deceiving. For example would you think a hammer or frogspawn would look like they do when inflated if you had only first seen them deflated with just their base skeleton showing? Anyway the sweepers on my baseball size Siderastrea extend anywhere from about 2" - 5"

[Oscar]

Originally Posted by Snappy

:Anyway the sweepers on my baseball size Siderastrea extend anywhere from about 2" - 5"

Snappy: Thanks for the insight. This is actually my first coral, I am still waiting until I am sure that my system has stabilized and that I figure out the Ca, Mg, alk issues until I add coral.

I still have plenty of algae, now that I know what this ceature is I will have to be a bit more vigilant in pruning algae around its perimeter.

Any special feeding requirements I should be aware of?

[Zoaelite]

Originally Posted by Snappy

Many corals are deceiving. For example would you think a hammer or frogspawn would look like they do when inflated if you had only first seen them deflated with just their base skeleton showing? Anyway the sweepers on my baseball size Siderastrea extend anywhere from about 2" - 5"

And if you think this is bad (at night time) take a look at a galaxy coral, their not shy at all with those tenticals.

Originally Posted by Oscar

Snappy: Thanks for the insight. This is actually my first coral, I am still waiting until I am sure that my system has stabilized and that I figure out the Ca, Mg, alk issues until I add coral.

I still have plenty of algae, now that I know what this ceature is I will have to be a bit more vigilant in pruning algae around its perimeter.

Any special feeding requirements I should be aware of?

Being an LPS coral target feeding small meaty foods will help this coral grow, still its said that 90% of energy captured by coral is from photosynthesis of their symbiotic algea so strong lighting and proper water conditions are the best way to maintain health.
Levi

[Myka]

Originally Posted by Snappy

It's not porites, that is actually a variety of Siderastrea sp. which is considered an LPS. They can extend fairly long sweepers at night so give it some room.

I've never even heard of this species...how does it differ from Porites? It looks VERY similar. If this is true (and I doubt it very little), then I bet there are A LOT of misidentified Porites out there!

[untamed]

I also have patches of that on my LR...which makes some sense considering that my rock is Florida aquacultured. I don't know what it is. While still alive at 1 year +, it has not really done well in my system. I've not attempted to target feed it.