Aiptasia? and Baby Lettuce Sea Slug? In Dwarf Seahorse Tank

SeaHorseFan

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Hello all!

I have a 10 gallon dwarf sea horse tank with several varieties of macroalgae, along with a couple dwarf pipefish, some sexy shrimp, and a pair of lettuce sea slugs. The tank has been thriving, but yesterday I believe I found an aiptasia anemone. I didn't grab a picture of the first one, simply pulled it out of the tank. While searching for more, I found an odd, transluscent blob on the glass as well. I went to pull it out, but to my surprise the moment I touched it, it moved away from the tweezers rather quickly. It is quite mobile, and either moves all over, or I have several that I see at different times. I've spotted it a couple times in various places. Thinking about it, I began to wonder if it could be a baby lettuce sea slug. All pictures I can find show them much larger and already having their green color established. I posted the best video I could get of it, sorry it's so fuzzy. Can anyone confirm if it is a lettuce sea slug baby, or something else I should be concerned about?

As for the possible aiptasia, I found another one today and removed it as well. However, I grabbed some pictures of it first. All seahorses seem to be doing well, but I did have some new members of my herd born just yesterday. They're so tiny I worry about their survival if they come into contact with any of these anemones(?). Any advice on safe ways to remove them from a dwarf seahorse tank? 191132370_487828729125141_5630188522187495925_n.jpg 189239165_1458950351164367_3325990755198380458_n.jpg 191900018_528271281688766_565346662770458983_n.jpg
 

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andiesreef

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It almost looks like some type of worm to me... I'm not great with IDS but maybe a spaghetti worm? And the video won't load for me but it sounds like it could be a kind of nudibranch or something.
 
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SeaHorseFan

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This was the best I could get my camera to focus on it. I definitely have at least two wandering around. Does this help?

Not sure if it’s relevant, but when they move, it’s definitely away from the end with the forked shape. The one in the picture was moving to the right. 2C261CBB-7EB2-4EC8-BE1E-C56CECEB7EB7.jpeg 6DA71A52-4F8F-47FA-826B-83F9F1B259DF.jpeg
 

Algae invading algae: Have you had unwanted algae in your good macroalgae?

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