Anyone know what this is?

[Fishel]

This appeared in my coral quarantine tank. There are other smaller green ones like it stuck to the side of the tank. The tank is clean, newly established/cycled tank. The only thing in it is a GSP frag that has overgrown its plug and a 6 head Rasta Zoa. They were both put in a couple weeks ago at the same time and both were dipped for 15min in CoralRX beforehand.

Is it a pest? Like I said there are others like it but smaller.

 

[lynaea75]

That kind of looks like bryopsis although I’ve never seen it in person.

 

[JGT]

Does it move around? Looks like algae.

 

[olonmv]

I’d put money on bryopsis. Syphon it out with flow off to prevent it from spreading or treat tank with reef flux rx.

 

[Fishel]

Thanks, it does look like bryopsis! I just ordered some ReefHD Reef Flux. In the meantime I’ll try to suction it out. I think it’s on the GSP plug as well. Thank goodness its a quarantine tank! These are my very first corals.

 

[olonmv]

No problem. I ran reef flux in my tank per the recommended dosage and none of my inhabitants were affected. I have anemones shrimp coral and fish. You should be ok with the couple of corals you have. Best of luck!