Unknown fish ID

ILikeFish!

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I saw a fish at Petco today that was a deep blue color with yellow-tipped tail and dorsal fins. It had a body shape similar to a blenny. At first, I thought it might be a bicolor blenny, but it had much less yellow and a much deeper blue color. I didn’t get a picture of it, but I was wondering if anyone might know what it could be.
 
Did it look like this?
 

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I saw a fish at Petco today that was a deep blue color with yellow-tipped tail and dorsal fins. It had a body shape similar to a blenny. At first, I thought it might be a bicolor blenny, but it had much less yellow and a much deeper blue color. I didn’t get a picture of it, but I was wondering if anyone might know what it could be.
Pictures please or call LFS. I can guess 20+ fish that fit this description
 
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I saw a fish at Petco today that was a deep blue color with yellow-tipped tail and dorsal fins. It had a body shape similar to a blenny. At first, I thought it might be a bicolor blenny, but it had much less yellow and a much deeper blue color. I didn’t get a picture of it, but I was wondering if anyone might know what it could be.
Could be a stressed Midas blenny... they have been know to turn blue/purple.
 
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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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