Black stringy algae spots

Reef Boi Rich

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Does anyone know what this is? I left town for a long weekend and came back to multiple spots around the tank.

This is a newish tank (got wet around December). I'm also battling dinos by trying to feed more and raise nutrient levels. Planning on adding a uv sterilizer at some point.

B1490EA9-CA51-4199-BA63-3524B30B5FF0.jpeg
E60D0465-7825-435A-A31B-023E9A2364F5.jpeg
B3C2276E-CF5D-46EE-88EE-3A22EBBB690E.jpeg
 
Pics a little fuzzy but appears to be the start of dinoflagellates
 

IF YOU HAD TO TAKE A REEFING EXAM, WOULD YOU PASS?

  • Yes!

    Votes: 32 45.7%
  • Not yet, but I have one that I want to buy in mind!

    Votes: 9 12.9%
  • No.

    Votes: 26 37.1%
  • Other (please explain).

    Votes: 3 4.3%
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