Algae?/coral?/parasite?/ Id please

[xxkenny90xx]

Anybody recognize either this greenish yellow blob I've got growing in a few places or this tiny red flower thing I just spotted? Thanks

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[Derbird]

I am no expert but that looks like a sponge to me

 

[DTECH07]

I am no expert but that looks like a sponge to me

I will 2nd that which is good!

 

[user 26995]

SWEET! Id love to have that sponge in my tank.

 

[seedlessinseattle]

I have the same color sponge, it looks exactly like mine, I don't know if its bad but it looks cool

 

[NanaReefer]

Sponge= goodness and the lil red thing is a feather duster also good. Both are filter feeders.


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[xxkenny90xx]

Thanks guys, I did a little research and I think your right, sponge and feather duster, both good news. Is there anything I can do to encourage there growth? Feeding, lighting, flow, ect? Or just leave them alone? The feather is beautiful but both are hidden in dark crevasses

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[spieszak]

The sponge wants low light, so keep it shaded.
I don't know about "common" experience with sponges, but I do know that I had them when my tank was new, and they faded as my tank matured... They seemed happier with "softie" params when I was allowing nutrients to be a little higher, and as I moved towards lps/sps and brought nutrients down, they faded. But then again, during the process I also upped lighting, which could be the root cause.
I still have them in my nano at work, which is lower light and higher nutrient....

 

[N1Husker]

I agree with the sponge i.d.