Weird Transparent Tentacles

ArowanaLover1902

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I've tried to get pictures of these, but it would require a really good camera and the perfect angle, so pictures are unlikely. I've always had them and always wondered, not sure why I haven't asked before. Since I can't get pics I'll describe them the best I can:
What they look like:
- Long, transparent and opaque tentacles that appear all over my tank
- Only appear as one thing, it isn't organisms with tons of tentacles
When they appear:
- Whenever I feed or scrape algae (I only feed the occasional bit of liquid food, my tank is pretty self sustaining [I've actually got a bit of a problem with that I'll mention in the PS, its irrelevant though])
- Any time, night or day
Behaviour:
- It seems they try to catch food out of the water
- As soon as food goes away, so do they, I think they actually break off and dissolve.

Sometimes, they produce little mucus nets of similar material but thinner (this may be a different organism, but I'm not sure)
I've always had them, but my reef is going great right now and so is their population, I'm pretty sure they aren't harmful, I'm just curious.

P.S. - the problem with my tank is because I don't feed the fish, I can't control their food intake, ergo, my lawnmower blenny that came to me a little skinny is now super fat and I'm not even sure what he eats (I think he actually eat my cyano)
 
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Lots of options - vermetid snails (mucus nets make me think about these) and micro brittle stars (yes, they can only stick one leg out at a time) come to mine. How large are they (length, width), is there anything at the base like a shell?

Really need a photo if you can get one.
 
Nothing at the base, they literally just pop out these little tentacles that are anywhere between two inches to four. Width is a bit wider that a hair
 
Google Digitate hydroids?
 
Is anything like this? I don’t know what it is.

A576C464-6885-49BE-A56A-DEFCBEA29033.jpeg


59132575-38D2-471C-AC62-07536CB584AC.jpeg
 
Vermetid snail...nets and maybe spirorbid worms...
 
ReefLover it looks very similiar, there is nothing at the base though and it's usually only one tentacles from each source rather than two
 

IF YOU HAD TO TAKE A REEFING EXAM, WOULD YOU PASS?

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