ID something growing on my frag

[mike_hardy]

Saw this tonight while doing maintenance, it’s clear/white and growing from the bottom or beneath the frag. Ammonia, nitrite and nitrate are zero along with phosphate. Calcium is 430 and mag is 1285. Salinity at 1.025, temp is 78/79, running lights 8 hours blue with 3.5 being combined blue and white. Tank is six months old.

 

[mike_hardy]

How do I add a photo lol

 

[Crabs McJones]

Hi mike and welcome to R2R! To add a photo select the image icon above the text box. It should look like this

 

[mike_hardy]

Thank you!!!

 

[mike_hardy]

Thank you!!!

 

[KJ]

Hard to tell from the pic. Google colonial hydroids.
https://www.google.com/search?q=hyd...X&ved=0ahUKEwjxu-mGlePNAhUnzIMKHTnfBAEQsAQIJA