What Type Of Nudi Or Slug Is This?

[Matt]

I have about 7 of these and haven't added anything since fragfest in London 2 months ago. They are never around my corals and I have about 30 different zoa colonies and they are all doing great and thriving so I don't believe they're zoa eaters at all. I just don't know what they are. Please help

 

[reef keeper]

http://www.bily.com/pnwsc/web-content/Nudibranch Identification.html

 

[Matt]

I couldn't find it in there either

 

[reef keeper]

Can you get better pics and upload with photbucket or something?

 

[Matt]

I just changed the pictures

 

[Matt]

They all seem to be 1/4" and all bright orange.

 

[TORX]

Yellow nudibranch. Should be reef safe. I don't know much about them, but they are not they typical zoa eating nudi. Zoa eating ones have feather or testicle on their back that matches to zoas skirt making them harder to see

Sent from my SM-G925W8 using Tapatalk

 

[Matt]

The 7 I see are eating algae and don't seem to go near the corals. It's just strange I watch my tank for about a hour a day upclose and haven't added anything in months and all of a sudden they appear.

 

[Matt]

I've checked all my zoas and all their skirts are intact and all are open

 

[SamB]

Maybe sump them until you can positively identify

 

[Kman]

Since when you took the pic it was on a rock and by the looks of it eating algae it is more then likely reef safe. Nudi typically stay very close to their food source so they have easy access to food. They will usually move a way if the food source is depleted and move on to the next source. So they would jump from coral to coral if they feed on them. With that being said keep an eye at your corals for any sign of distress just in case. Look at the base and any under hangs of any sps in your tank as well.

If you are really worried put it in the sump till you ID like SamB mentioned.

 

[heath]

Zoa eating ones have feather or testicle on their back that matches to zoas skirt making them harder to see

do you mean tentacles'...

 

[TORX]

Damn Auto correct

Sent from my SM-G925W8 using Tapatalk

 

[Nick James]

Damn testicle backed nudis....sounds like a winning Halloween costume idea

 

[Matt]

I've spent countless hours watching the 16 Orange nudis in my tank and have pulled out almost every coral checking to see if any of these are eating coral and haven't found one near any coral and all the corals are all in perfect shape, the zoas are multiplying like crazy and none have any eye lashes missing or anything. My buddy thought he would do an experiment and brought over a small piece of live rock covered in algae and we placed that and 3 Orange nudis in a pitcher of tank water and 3 days later the Rock is pretty much cleaned of algae. They look identical to lettuce nudibranchs just solid bright orange instead of green.

 

[nathan]

I've spent countless hours watching the 16 Orange nudis in my tank and have pulled out almost every coral checking to see if any of these are eating coral and haven't found one near any coral and all the corals are all in perfect shape, the zoas are multiplying like crazy and none have any eye lashes missing or anything. My buddy thought he would do an experiment and brought over a small piece of live rock covered in algae and we placed that and 3 Orange nudis in a pitcher of tank water and 3 days later the Rock is pretty much cleaned of algae. They look identical to lettuce nudibranchs just solid bright orange instead of green.

That's really cool Matt.

 

[Aquatic Dreams]

I think those are very cool Matt. You should keep breeding those and sell them to members. I'd take a couple to eat the algae in my tank.

Dave.

 

[Aquatic Dreams]

They look identical to lettuce nudibranchs just solid bright orange instead of green.

Yeah ... I agree. I spend an hour or so looking up pics and information on various nudis and slugs and that's what I thought as well. There was nothing else that seemed to match the shape and colour of the ones you have that I could find. Sounds like you picked up a good hitchhiker.

If you ever want to sell a couple and are coming through London let me know.

 

[yveterinarian]

Very cool find! Oh how I wish you were closer and could sell me one or two. I'm having a terrible time with hair algae at present time.

 

[AdInfinitum]

Look up Elysia Ornata...colour will vary based on what types of algae it is eating...if that looks like a match, someone with a Bryopsis issue should try some as various Elysia species are known to feed on it...