what is that?

  1. B

    Can anyone tell me what this thing is?

    Hi, I’m new on reef tanks, I recently started 4 months ago, water already cycled have a little bit of diatom and I have four hermit crabs, however I saw something weird growing from the back of my aquarium can anyone tell me what it is?
  2. Salty Sea Flowers

    Please ID these zoas?

    Does anyone have any idea what these are, or if they've even got a name? Thank you guys!
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