Whats is this invertebrate?

[topo]

Hello comunity,

All is ok but today I see this invertebrates and I dont know what is this, and are dangerous?

Many thanks, for your help

Are 2 diferent species:

These they are fast and they are on the rocks they have as pincers in their queues, There are many of them.

http://img180.imageshack.us/img180/1676/bivhoraro2kj6.jpg

2. And this they are in the glasses

http://img176.imageshack.us/img176/5312/bivhorarouk2.jpg



I habe a reef tank 120 ltrs hqi 150 watts and 2 marine glo.
Skimmer. berlin system. and live rock.

Nitrates: 5ppm
ph: 8.4

[racrumrine]

Welcome to Reef Central

Regarding 1, without a picture or a sense of size, it's hard to tell what it is other than to say it probably comes from a shrimp or crab. Search this site to see if you can find a picture of your critter http://melevsreef.com/id/

Regarding 2, it's a flatworm. The same site can give you more info about them.

Best of luck,

Roy

[topo]

Thanks for the link

I believe that is an isopod? but is red color mine, and the size is aprox 1mm.



regards,
Maxi.

[dc]

[welcome]

[topo]

many thanks!

[Kgoarmy17]

Number 2 is a flatworm.