Over fed Larvae?

[Bellabelloo]

This evening I fed my little treasures with a new batch of brine shrimp ( different shrimp eggs) and within momments many of the larvae where up side down and appearing dead. I rinse the shrimp out under filtered water from the filter jug ( new filter in two days ago)..fearing the worst I took out the ones that appeared dead and put them in a bowl . I noticed the albino ones which are a lot smaller all seemed to have some white stuff in their tummies. A while later I was about to dispose of them and most had sprung back to life. They had been fed earlier in the day the remains of the old batch so don't think I had been starving them..I suspect they had eaten so much they had tummy ache. A few of the smaller albino ones did not recover. Are there any suggestions to what else may have gone wrong?

 

[Daniel]

Did you sieve the brine shrimp to remove the eggs (cysts) and eggshells? Maybe a stupid question, but I have made the experience that many larvaes swim bottom-up when they gulped to many eggs (mostly visible as small dots in their stomachs).
I don't have another explanation or idea if you cleansed them nauplias of salt.

Daniel

 

[Bellabelloo]

Yes I sieved them, but I am pretty sure some eggs tend to remain. When I checked on the supposed dead they were all alive, this morning there was one dead albino( a fair few of these do not seem to be developing as quickly as the others.)
I fed them all again this morning and alls well..I suspect they were just trying to worry me about something else!!

 

[philbaker76]

Hi Bellabelloo, I had the same problem when I overfed my youngsters on maggots last week (I know from posting on here maggots were a bad idea) - but, I've not fed them for a couple of days, and they all seem to be happy enough now.