Growth on zoa

jmags080307 · Jun 28, 2017

Something appears to be growing on this zoa i received. I circled it in red. Amy ideas?

jx.reef · Jun 28, 2017

Looks like zoa eating nudibranch eggs. Very bad and something you need to treat immediately.

Oohkris123 · Jun 28, 2017

Weird....maybe a sponge

killingseed2000 · Jun 28, 2017

i would agree, zoa eating nudibranch eggs. you can scrap them off. maybe evern dip the frag. is it a new frag? do you have other zoas? you may want to inspect them as well as keep an eye out for adult nudi. they can be hard to miss as they will blend into the zoa that they are eating on.

google image search for you to compare.
https://www.google.com/search?q=zoa...i=K_xTWaDYCMTnmAHxqoWwCg#imgrc=fdG8Nh4DaxO19M:

nudi

https://www.google.com/search?q=zoa...TnmAHxqoWwCg#tbm=isch&q=zoa+eating+nudibranch

jmags080307 · Jun 28, 2017

killingseed2000 said:
i would agree, zoa eating nudibranch eggs. you can scrap them off. maybe evern dip the frag. is it a new frag? do you have other zoas? you may want to inspect them as well as keep an eye out for adult nudi. they can be hard to miss as they will blend into the zoa that they are eating on.

google image search for you to compare.
https://www.google.com/search?q=zoa...i=K_xTWaDYCMTnmAHxqoWwCg#imgrc=fdG8Nh4DaxO19M:

nudi

https://www.google.com/search?q=zoa...TnmAHxqoWwCg#tbm=isch&q=zoa+eating+nudibranch

New frag. I dipped it coral rx before putting in my tank and nothing came off.

killingseed2000 · Jun 28, 2017

the dip wont kill the eggs you will have to remove them by hand. use a dull knife , like a butter knife, and scrape them off.

Gil03 · Jun 28, 2017

The photo isn't too clear but if I had to guess I would say it looks like a sundial snail which unfortunately does eat zoas. A good dip in something like coral RX will do the trick though.