White round things on three of 50 rocks

[darknessheir]

found these white spots on 3 of maybe 50 of my live rocks. I have never noticed them before and when i poked one with my finger nail it was soft. they are flat and easily scrape off the rock. here is a picture hope it helps!

You can see 3 below my nails and four to the right. Also it looks like these are spots on the rock where they have been because there are oval notches in the rock.

 

[darknessheir]

bump myself

 

[darknessheir]

ok so 45 ppl have seen this and no one know what they are?

i was looking at my display rock and it looks like there might be some on those rocks but they are dark green. - Algae of some sort?

 

[roka64]

Wow, those have me stumped. Very small sponges maybe?

 

[darknessheir]

dunno - they dont look like any sponge i have seen. also like i said they leave a groove in the rock where they have been

 

[spikey]

I have had a few of these in my tank (I think). Do you find that they extend at times with a kind of mouth? I think it is some sort of coral. What sort I have no idea

 

[melosu58]

I personally think they are Qtip sponges.

 

[ryshark]

I have some of those too on only one or two rocks. I have been wodering what they are, but I'm not to concerned about it.

 

[thincat]

They could be Great White Shark Eggs! Not, If you think you also have some in green they may be bubble algae. That's a far left guess though.

 

[ryshark]

These things are different than bubble algae, they are way more flat and white.

 

[thincat]

As far as those flat things I have no idea.

 

[roka64]

I'm still stumped, what kind/where is the rock from?

 

[darknessheir]

well I bought it from a tank being sold
he said he bought it fully cured from foster and smith retail