What are these?

[guyguy12]

Does anyone know what these are? They are growing all over the place.

 

[EeyoreIsMySpiritAnimal]

Really hard to tell. Can you describe them? Do they move? Have you tried cleaning/scraping the glass?

 

[guyguy12]

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]

I'm sorry but I think a better picture is needed.

 

[MERKEY]

Possibly hydroid jelly fish but better pic would help.

 

[EeyoreIsMySpiritAnimal]

How old is your tank?

 

[guyguy12]

How old is your tank?

It’s around 4 months old. These guys are relatively new. Past couple weeks.

 

[EeyoreIsMySpiritAnimal]

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.

 

[guyguy12]

Cool looking! Imma go with hydroids- this kind are often found in new tanks and will go away on their own.

I think you’re right. Thanks!

 

[ISpeakForTheSeas]

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]

Hydrozoa