Any idea what these are?

sailor4life

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Hey there I have a 35 dsa lagoon tank and in the recent weeks I’ve had these random things pop up not sure what they are. I asked other forums and no one knew any help would be appreciated thank you !
 

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  • IMG_3798.MOV
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Welcome to Reef2Reef!

Videos can be pretty tricky to upload here - most people upload them to YouTube and link them here from there.

That said, those are colonial hydroids (the first video shows them pretty clearly once it zooms in) - I'm not sure which species (there are quite a few branching species like those), but (with a cursory glance) it reminded me Obelia spp.
 

HOW MUCH DOES A FISH’S FEEDING REQUIREMENTS AFFECT YOUR STOCKING DECISIONS?

  • A lot! - I avoid fish that require frequent or specialized feeding

    Votes: 6 31.6%
  • Quite a bit, but an automatic feeder can change my answer

    Votes: 4 21.1%
  • It depends on whether my nutrient export can handle it

    Votes: 3 15.8%
  • It depends on how badly I want the fish

    Votes: 5 26.3%
  • Not much. I’m willing to adjust my routine

    Votes: 4 21.1%
  • Not at all. Feeding demands don’t limit my stocking choices

    Votes: 4 21.1%
  • I usually learn about the demanding feeding schedule after buying the fish!

    Votes: 1 5.3%
  • I haven’t really considered this before

    Votes: 0 0.0%
  • Something else (see my comments in the thread)

    Votes: 0 0.0%
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