What is this snail/polyp thing??

[crazy4clowns]

Hi, I am trying and struggling to keep coral and I just brought in a tuxedo urchin to help with my algae issue and he when I bought him had a green star polyp on him the store gave me for free. I noticed this little thing crawling around and at first I thought it was also a star polyp but this thing CRUISES and moves around the tank and is currently obsessed with my Rasta coral thoughts on what this is ?? Also yes I lm aware that Algae has taken over my Rasta so if you have tips for that too I’m all ears

 

[Joe31415]

Point a flashlight at it or set your lights to white and then take the picture. It's notoriously difficult to figure anything out when everything is blue. Also, if it's cruising around the tank, it might be easier for us to tell when it's not in the algae.

 

[ISpeakForTheSeas]

Yeah, it's pretty tough to see in the pics - could you pull it out of the tank in a bowl of tank water and get some white light pics of it against a solid color background?