Help PLEASE!
- Thread starter Juck
- Start date
Males "leading" the current to fertilize, wow, that one blows me away.Any update on that latest nest??
Have noticed a few similarities between your clowns and some Black and Whites i have here in Adelaide, Australia.
The first three nests were all similar and didnt hatch.
Didnt notice much about fertilisation but the fish all seemed to grow ok? just not hatch... I have read in a few places that the first three were duds? This was exactly the case for mine. The fourth nest was different in colour. Much pinker interestingly enough? although it was difficult to tell against the teracota?
By the third nest I had the adult diet sorted and fed them the same thing for the third and fourth nest and got larva to hatch for the 4th but not the 3rd?
Not sure whether any of the others have noticed something like this 3 nest thing?
Nathan
Have noticed a few similarities between your clowns and some Black and Whites i have here in Adelaide, Australia.
The first three nests were all similar and didnt hatch.
Didnt notice much about fertilisation but the fish all seemed to grow ok? just not hatch... I have read in a few places that the first three were duds? This was exactly the case for mine. The fourth nest was different in colour. Much pinker interestingly enough? although it was difficult to tell against the teracota?
By the third nest I had the adult diet sorted and fed them the same thing for the third and fourth nest and got larva to hatch for the 4th but not the 3rd?
Not sure whether any of the others have noticed something like this 3 nest thing?
Nathan
Juck
New member
Hi Nathan,
The first 2 spawns were small but were feltilized normally,,,, the third one was a disaster but I think only because of the powerhead blasting the pair while they were spawning. Fourth spawn is going well so far.
If the eggs are developing and not hatching then the following post by Martin Moe on another site may be of interest,,,, I'm sure he won't mind me posting a copy here:
___________________
In my experience there were two reasons why clownfish eggs did not hatch within the proper time.
The first was temperature. When temperature dropped below about 78 F the hatching time was extended to 8 to 9 days (A. ocellaris) and if it dropped to 76 - 75 F, they might not hatch at all.
The other was an unusually strong egg shell, which seemed to be caused by excess shrimp (maybe chitin) but this is just a wild theory at this point. But you might try reducing the amount of shrimp in the diet.
Also once hatching is delayed for a couple of days past the optimum time, for whatever reason, the embryos/larvae seem to lose the ability to hatch and if they do hatch, they seem to permanently retain the body bend they have in the egg, are never able to straighten out, and swim in circles till they die.
Also, at the time of hatch 7 to 8 days (A. ocellaris) they evidently need physical stimulation, typically provided by the male, in order to hatch. If you set up a nest under aeration and miss part of the spawn, that part will not hach and the larvae will die in the egg.
So your eggs not hatching may be due to a variety of causes (also possible is a microsporidian parasite in the egg, but this is usually manifested within a 2 to 4 days after spawn). I would check temperature and activity of the male first.
____________________
The first 2 spawns were small but were feltilized normally,,,, the third one was a disaster but I think only because of the powerhead blasting the pair while they were spawning. Fourth spawn is going well so far.
If the eggs are developing and not hatching then the following post by Martin Moe on another site may be of interest,,,, I'm sure he won't mind me posting a copy here:
___________________
In my experience there were two reasons why clownfish eggs did not hatch within the proper time.
The first was temperature. When temperature dropped below about 78 F the hatching time was extended to 8 to 9 days (A. ocellaris) and if it dropped to 76 - 75 F, they might not hatch at all.
The other was an unusually strong egg shell, which seemed to be caused by excess shrimp (maybe chitin) but this is just a wild theory at this point. But you might try reducing the amount of shrimp in the diet.
Also once hatching is delayed for a couple of days past the optimum time, for whatever reason, the embryos/larvae seem to lose the ability to hatch and if they do hatch, they seem to permanently retain the body bend they have in the egg, are never able to straighten out, and swim in circles till they die.
Also, at the time of hatch 7 to 8 days (A. ocellaris) they evidently need physical stimulation, typically provided by the male, in order to hatch. If you set up a nest under aeration and miss part of the spawn, that part will not hach and the larvae will die in the egg.
So your eggs not hatching may be due to a variety of causes (also possible is a microsporidian parasite in the egg, but this is usually manifested within a 2 to 4 days after spawn). I would check temperature and activity of the male first.
____________________
Juck,
Think I might have come across that paragraph by MM before too?
These first three nests were significantly different in terms of development and all? Wish I had taken a closer look but I was a little scared to take them out of the water and all?
Now is a little different. Had a full hatch last night of about 600 think?
All for naught because I have no rots but I may try a few of the tricks listed around the place for getting them through with no rots?... Would like to get 20 % survival ....... Doubt it though.
Working on the Monkey see Monkey do principle
Another factor is that I have a pair of coral banded shrimp which regularly feed my adult clowns...... interestingly enough the cbs eggs were released last night too??... Hmmm did the clowns know this? If I had rots I might have tried to save a couple?
120 days min larval period though... a little more work than the 9 day clowns!
Think I might have come across that paragraph by MM before too?
These first three nests were significantly different in terms of development and all? Wish I had taken a closer look but I was a little scared to take them out of the water and all?
Now is a little different. Had a full hatch last night of about 600 think?
All for naught because I have no rots but I may try a few of the tricks listed around the place for getting them through with no rots?... Would like to get 20 % survival ....... Doubt it though.
Working on the Monkey see Monkey do principle
Another factor is that I have a pair of coral banded shrimp which regularly feed my adult clowns...... interestingly enough the cbs eggs were released last night too??... Hmmm did the clowns know this? If I had rots I might have tried to save a couple?
120 days min larval period though... a little more work than the 9 day clowns!
