Excitement in the classroom: ID Please

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tangboy

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For the past week or so, my students and I have noticed a weird weblike structure that I thought contained egg sacs.

Here is a picture of the overall web structure with little fans of critters on each fan.

Not sure.jpg


Taken with my LG2 Phone Camera

Here is a picture under a microscope of each little knob

Microscope.jpg


Taken with my LG2 Phone Camera through eye of microscope.

Looks very Hydra-like.
 
After doing some research, I believe it may be Urchin larvae. Confirmation anyone?

Only problem with that is the description of Urchin larvae is that they are free floating, these are clustered on feathers on the branches of the colony in the first picture.
 
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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: 6 33.3%
  • Quite a bit, but an automatic feeder can change my answer

    Votes: 3 16.7%
  • It depends on whether my nutrient export can handle it

    Votes: 3 16.7%
  • It depends on how badly I want the fish

    Votes: 5 27.8%
  • Not much. I’m willing to adjust my routine

    Votes: 4 22.2%
  • Not at all. Feeding demands don’t limit my stocking choices

    Votes: 4 22.2%
  • I usually learn about the demanding feeding schedule after buying the fish!

    Votes: 1 5.6%
  • 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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