Little red thing

[LiveFreeAndReef]

Also, for the OP.
Here are some pics of formanifera. hard to the touch. Not soft.
If it is soft, it is an algae. Didn't appear soft to me.

Found on wet web media.

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Isn't coralline hard though? It's an algae

 

[Goaway]

Isn't coralline hard though? It's an algae

It wont have the filter feeds, encrusting algae is hard. Branching coraline is soft. Well, flexible and wont have feeders,

 

[Goaway]

Also, if you look at what the op is talking about, it has hair like fibers poking out of it.

 

[LiveFreeAndReef]

It wont have the filter feeds, encrusting algae is hard. Branching coraline is soft. Well, flexible and wont have feeders,

Oh! I didn't think we had determined that the OPs mystery red patch had feeders, I guess I scrolled past that!

 

[Goaway]

Oh! I didn't think we had determined that the OPs mystery red patch had feeders, I guess I scrolled past that!

They are visible in his picture.

 

[LiveFreeAndReef]

They are visible in his picture.

If we're talking about the two little white things on the left in the first picture, I don't think that's enough to make a definitive decision. The pictures are good enough to do a through palm-reading though! lol

 

[Goaway]

If you can't see the fibers, maybe I need glasses.

 

[LiveFreeAndReef]

If you can't see the fibers, maybe I need glasses.

Maybe I need your glasses lol

 

[LiveFreeAndReef]

 

[Goaway]

I can understand why most over look these guys. They don't grow in light. Only time I find them is when I am flipping live rock over.

 

[BanjoBandito]

another fun fact:

electric flame scallops are honestly pretty capable of defending themselves, they spit toxic acid!

Video of Clam V Shrimp in lab

HE TRIES TO HAVE SEX WITH IT! LOL. Thank you for the laugh today!

 

[SlugSnorter]

HE TRIES TO HAVE SEX WITH IT! LOL. Thank you for the laugh today!

this is the result

 

[BanjoBandito]

this is the result

LOL.

 

[Soren]

+1 forams or foraminifera. It looks distinctly more like this to me than like coralline algae, but my experience is still pretty limited...

 

[SlugSnorter]

+1 forams or foraminifera. It looks distinctly more like this to me than like coralline algae, but my experience is still pretty limited...

i cannot tell if those are sweepers or just reflection, but the surface looks calcified

 

[Soren]

i cannot tell if those are sweepers or just reflection, but the surface looks calcified

I cannot tell for sure either, but it looks to me like there are spikes like forams and does not have the same calcified appearance to me.

@Streetlamp should be able to look up pictures of coralline algae and forams to compare to what is in the pictures earlier. It is likely that it can be viewed in more detail and compared to pictures than what can be captured in a picture for us to use for exact ID.

 

[Streetlamp]

Thanks for all the replies. I’ll try get better pics. Those formanifera pics look more like it. It isn’t like any of the coralline in my tank which is crusty. This appears more life form like if that makes sense.

 

[Goaway]

Look for small thin fibers protruding from the object in question. Thats the big decider.

 

[Streetlamp]

I think I saw small thin fibres. It small so had to be sure especially with the optics looking through glass and water

 

[Goaway]

Most likely formanifera. Harmless critter. They like the dark.