Red Slug/Nudi ID Needed

Squishie89

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Tonight I noticed some BRIGHT red slugs and eggs in my overflow. The only thing I have added recently is a Strawberry Crab, which is quite red/pink. I have no red corals or sponges, only red inverts I have are a fire shrimp, sexy shrimp, halloween crab and the strawberry crab. I believe these to be slugs/nudi's because I can see antenna/eye stalks. My best guess is these critters live on strawberry crabs and either are parasitic or just use the crab as a way to get food. I have not found any of these in the display tank, and only found either 1 slug or 1 egg packet in the sump so far (but the sump is full of bristle worms so that could be a factor).
I took these photos with a special lens for my phone, as you can see by the limpets, spinoid worms and pods, these are quite small.





I know that last picture is dark, but it shows the slug in motion and shows it's tail and head shape (slug is moving towards the right).

I know there is a lot of critters in our tanks, including a lot we don't know are there! Mostly I just want to make sure I don't have a problem on my hands.
 
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HOW MUCH DOES A FISH’S FEEDING REQUIREMENTS AFFECT YOUR STOCKING DECISIONS?

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

    Votes: 20 34.5%
  • Quite a bit, but an automatic feeder can change my answer

    Votes: 8 13.8%
  • It depends on whether my nutrient export can handle it

    Votes: 8 13.8%
  • It depends on how badly I want the fish

    Votes: 12 20.7%
  • Not much. I’m willing to adjust my routine

    Votes: 9 15.5%
  • Not at all. Feeding demands don’t limit my stocking choices

    Votes: 9 15.5%
  • I usually learn about the demanding feeding schedule after buying the fish!

    Votes: 2 3.4%
  • I haven’t really considered this before

    Votes: 4 6.9%
  • Something else (see my comments in the thread)

    Votes: 2 3.4%
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