Hitchhiker ID

[keegster803]

Hey guys just set up my nano a couple of days ago, and after I put the live rock in 2 days after, this guy appeared, what is he? Any ideas? Is he aiptasia?


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[Sniperhank]

No, aiptasia is an anemone. That appears to be a hydroid.

 

[keegster803]

What's a hydroid? And will they kill zoas?


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[Sniperhank]

Most likely those will fade away, but you can simply siphon it out. They do sting things are are awful when colonial hydroidds.