Help identifying corals?

[Cerri]

These two corals came with our tank and I was wondering if anyone could help identify them for me please?

http://i1378.photobucket.com/albums/ah107/cerritipping/imagejpg2_zps3cfa5608.jpg (http://s1378.photobucket.com/user/cerritipping/media/imagejpg2_zps3cfa5608.jpg.html)

[Cerri]

http://i1378.photobucket.com/albums/ah107/cerritipping/imagejpg1_zpseafa7a44.jpg (http://s1378.photobucket.com/user/cerritipping/media/imagejpg1_zpseafa7a44.jpg.html)

[Pet Detective]

mushroom (anemone) coral & brown button polyp coral

[Cerri]

Thank you. Are these considered good corals?

[Pet Detective]

I suppose any coral can be considered good, on the plus side, they are fast growing & very easy to keep, on the down side, eventually they can spread & cover other corals that you cherish far more than these beginner corals, it is best to isolate these corals with pieces of rubble so that you can semi-control their growth & expansion, unless you don't plan on expanding your coral collection.

[dkeller_nc]

More specifically, your photo suggests rhodactis species mushrooms and zoanthid polyps (commonly abbreviated "zoas" online). They're generally considered desirable, and in some cases folks pay big money for certain color morphs.

But they can and do become problem pests for certain types of tanks, most notably tanks that have been set-up with SPS corals in mind. So the advice to isolate them on the sand-bed is good advice - you may be glad you did in the future.

[cloak]

Check these out.

http://www.advancedaquarist.com/2002/10/inverts

http://www.advancedaquarist.com/2003/2/inverts

HTH.

[Cerri]

Great thanks for All the help,
With give those links a read through :-)