What are these?

guyguy12

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Does anyone know what these are? They are growing all over the place.
img_0288-jpeg.3656845


IMG_0288.jpeg IMG_0285.jpeg
 
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guyguy12

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Really hard to tell. Can you describe them? Do they move? Have you tried cleaning/scraping the glass?
They have a small orange base in the middle with white strings protruding out of them. When I scrap them off the just swim through the water and reposition elsewhere on the glass.
 

EeyoreIsMySpiritAnimal

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It’s around 4 months old. These guys are relatively new. Past couple weeks.
Cool looking! Imma go with hydroids- this kind are often found in new tanks and will go away on their own.
 

ISpeakForTheSeas

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As mentioned- hydroids.
It’s around 4 months old. These guys are relatively new. Past couple weeks.
I just wanted to comment, the second pic in the post I quoted above is great - you can see the shape of the medusa as well as the individual "beads" on the tentacles.

You have a Cladonema species hydroid, unless you've been adding stuff from the US west coast (or other, temperate/coldwater areas) they're most likely Cladonema radiatum.
 

vetteguy53081

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Hydrozoa
 

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