Looks like a very thin, calcified, green macroalgae - the first thing that would come to mind would be an algae from the taxonomic tribe Udoteeae (like the Mermaid's Fan mentioned above) or a species from the taxonomic family Dichotomosiphonaceae.
Haha, well it's a good guess at least - I mentioned a few more options to consider at this point.No no no ! Don't thumbs up like i found it...
I'll take a closer look on my pc tomorrow and compare with the pic. Any other pics of it in your tank to work with though?
Sorry for the super slow response! So, I can't find pics for a lot of the genera in the tribe/family, but the pics I can find of a few of them definitely have me leaning toward it being from the tribe Udoteeae, possibly a Rhipidosiphon species.i did my best under the circumstances. these are new growths in the fuge about 1cm. they have a long history here but basically, possible that it is a temperate zone species (if they can survive in a tank, which i think is likely). survived several "vibrant" overdoses 10 years ago and 4 months of total blackout. i am not trying to fight it because it would be a lost cause. i am more trying to find out if the "long filaments" (last photo, in DT) come from them or from another algae.
(flabellia petiolata is the closest "for some photos on the web")
At the base they are not, lets say "curve start" its more like a V shape.
Long string in tank ?
Looks to me like mermaids fan or Ulva LactucaHi, it's been in my tank for a long time, I've never been able to identify it, the roots and stolon are very small and thin, it gives me the impression that its root network is under the coraline. if you have any idea...
I'll let my urchin introduce it to you
Thk
)
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