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SarahJ

Could you identify these star like things on my glass

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SarahJ

Could someone take a look and tell me what these star things are and if they are good or bad.

Thank you in advance.

 

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jservedio

Hydroids - they are harmless and a pretty common part of new systems. They will boom in population and then die off and you will never see them again.

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Tired

Yep, hydroids. Depending on the species, they may bud off little jellyfish-like things. 

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