The first is definitely a starfish, of the harmless variety. No worries.
The second...difficult to tell, but COULD be hydroids...in which case...umm. Not good. Do some research on them and try to get a clearer picture if possible! They should be eradicated immediately and aggressively or they will spread and sting the @$#% out of everything.
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~Drew
10G Nano * 10G Sump * Deltec MCE 600 Skimmer * JBL Viper 150w MH * Zeovit * Vortech MP40W
Millions long for immortality who do not know what to do with themselves on a rainy Sunday afternoon. ~S. Ertz
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