Berghia Nudibranch eggs not bearing babies

[Kyleovski]

Hey all, I added about 10 berghia into my tank at the end of March. After nearly 3 months I have 5 left. Absolutely no new ones running about, most seemed to end up in the over flow and in the sump. I have since proceeded to collect all the ones I can find in the sump, they have done a good job in the sump but my display is still packed full of Aiptasia.

The 5 that I managed to collect Ive moved into a container that is on a syphon from the display and dumps into the sump. WHich means a general supply of good water and temp to the container.

Pic below of the container.

I add an aiptasia or two pretty much every day to keep them fed. they seem to be mating and laying eggs constantly however no babies, none, the eggs simply weather away and thats it. I look as closely as I can and cannot see a any microscopic babies. I am fairly sure nothing is predating them in their container as there is no where for amphipods etc to hide.

Water params are as follows:

Temp: 25.8 - 26C (78.44-78.8F) - Apex
pH: 8.2 - 8.47 daily swing
Alk: 9
CA: 470
mag: not sure but it doesnt seem to ever move from 1330-1360 whenever I do test

Nutrients higher atm as I had a dino outbreak so busy fighting that back.
NO3: 25ppm
phos: 0.15

Anyone have any ideas?

 

[ISpeakForTheSeas]

Hey all, I added about 10 berghia into my tank at the end of March. After nearly 3 months I have 5 left. Absolutely no new ones running about, most seemed to end up in the over flow and in the sump. I have since proceeded to collect all the ones I can find in the sump, they have done a good job in the sump but my display is still packed full of Aiptasia.

The 5 that I managed to collect Ive moved into a container that is on a syphon from the display and dumps into the sump. WHich means a general supply of good water and temp to the container.

Pic below of the container.

I add an aiptasia or two pretty much every day to keep them fed. they seem to be mating and laying eggs constantly however no babies, none, the eggs simply weather away and thats it. I look as closely as I can and cannot see a any microscopic babies. I am fairly sure nothing is predating them in their container as there is no where for amphipods etc to hide.

Water params are as follows:

Temp: 25.8 - 26C (78.44-78.8F) - Apex
pH: 8.2 - 8.47 daily swing
Alk: 9
CA: 470
mag: not sure but it doesnt seem to ever move from 1330-1360 whenever I do test

Nutrients higher atm as I had a dino outbreak so busy fighting that back.
NO3: 25ppm
phos: 0.15

Anyone have any ideas?

I'm not sure, but my first thoughts for potential problems would be:

-They might not be getting enough food to have the proper body condition to lay healthy eggs.

-The exact species of anemone they're feeding on isn't meeting their nutritional needs well enough.

-There's something off with the water (be it water quality, harmful bacterial contamination, some kind of pollution, or something else).

 

[Kyleovski]

I'm not sure, but my first thoughts for potential problems would be:

-They might not be getting enough food to have the proper body condition to lay healthy eggs.

-The exact species of anemone they're feeding on isn't meeting their nutritional needs well enough.

-There's something off with the water (be it water quality, harmful bacterial contamination, some kind of pollution, or something else).

Honestly would say its the last one, however I am not sure what it could be, I run carbon changed weekly, 15% water change every two weeks, dose kalk(maybe this?), all for reef to bring up trace elements.

SPS and other corals are all happy except for being stung by aiptasia

Maybe it is the Dinos?

Its so incredibly frustrating seeing them lay coils constantly and nothing comes of it.

 

[ISpeakForTheSeas]

Honestly would say its the last one, however I am not sure what it could be, I run carbon changed weekly, 15% water change every two weeks, dose kalk(maybe this?), all for reef to bring up trace elements.

SPS and other corals are all happy except for being stung by aiptasia

Maybe it is the Dinos?

Its so incredibly frustrating seeing them lay coils constantly and nothing comes of it.

Some of these things could potentially be an issue depending on how they're done (like the water change or kalk dosing), but they're not something I would to be an issue normally.

I wouldn't personally expect toxic dinos to impact the eggs before the adults, but I suppose it's possible.

Hopefully someone who knows for sure will chime in for you here, but - until then - all I can really suggest at this point (which probably isn't helpful, unfortunately) is getting a pic of the aiptasia for us and trying to feed more.