Small red things on my rock

[Coral_Wife]

I found these little red things mostly on one rock, found a couple on another rock at the other side of the tank. Can anyone identify? They are flexible/movable on the rock but attached. Wish I could get a better pic, but they are so small.

 

[Brit’s Fish]

Is this CaribSea LifeRock by any chance? I had some really similar colored algae growing along the edges of a couple pieces. I let it grow out and it got leafier, like a macroalgae. My LFS said they’d seen the same thing popping up in customer tanks.

 

[Coral_Wife]

Is this CaribSea LifeRock by any chance? I had some really similar colored algae growing along the edges of a couple pieces. I let it grow out and it got leafier, like a macroalgae. My LFS said they’d seen the same thing popping up in customer tanks.

I can't say for sure. We had actually purchased a few pieces of live rock back in October about a week after setting up the tank. Since they were already in the tank at the store, I'm unsure of the origin.