what are these critters

  1. GothFishKeeper

    Hydroids in my seahorse tank?

    I’m working on turning my nano reef into a macroalgae tank for dwarf seahorses. It’s been up for a year now and these little things have been in there for about 8 months, basically since i added the one extra piece of rock that they’re on. There’s only a few of them on that one rock and none of...
  2. osu87

    Are these pods??

    I got the best pictures I could. I recently just noticed these on my glass. I recently seeded my tank with pods. I was hoping that maybe I’m praying that’s what they are?
  3. 2aquaholics

    WHITE DOTS?

    These white dots appeared on our 2 month reef tank. Please help identifying. Pods ? Ich? Snail eggs? We just cleaned the tank and would like to know if these are harmful. Thank you
  4. Reef_Tanks

    What is this?

    What are these saw it on my Zoa then on a different rock plz help
  5. RickysReef2022

    Are these a tube worm or something?

    Are these little work looking things bad for my tank? They are one almost every rock
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