My A. agassizii

[gan]

There is very much fat in eggs and so eggs color is strongly dependent on diet.
Pigments dissolved in fat (lipochroms: red - carotens and lycopens, yellow - xanthophyll) migrate from food to eggs practically not changed.

GAN

 

[beleg]

Nice! I am feeding the mom more bloodworms and decapped artemia eggs this time to see if there is any difference.

I lost only 10 or so eggs (didn't hatch or got damaged while i was removing the ones with fungus). however seems i was also wrong about my estimation. There maybe around 60-70 wigglers..

Ok Below are the pix..

eggs

wigglers

 

[gan]

I am feeding the mom more bloodworms

Bloodworms have pigment from other group - hemoglobin. Hemoglobin is metabolized at the digestion and I am not sure if it may have influence on eggs color.

BTW - Hemoglobin lets bloodworms live in very polluted water.

GAN

 

[beleg]

Hence the name then Well at least this time i can feed her more than the male. Usually he was using his size to his advantage when eating.

 

[fishgeek]

good to see they got through the camallanus and are breeding

heamoglobin colour is based around iron
as suggested before other colours are based around carotene or caroten bound to a protein
hence feeding things that eat lots of green.. ie daphnia/bbs etc need to be gut loaded with algae to increase the level of carotene's

kind of like flamingoe's colour from eating shrimp

 

[beleg]

Thx Andrew. So i must setup my own daphnia culture and feed it with spriluna..

Btw I counted the wigglers and there seems to be 130 of them.. How did she , being so small , manage to pump out 140 eggs is a wonder to me.

 

[beleg]

How long does it take for the fry to swim ? Its been 9-10 days since the eggs were laid and a week since they hatched. The fry have been making jumpy movements on the bottom of the incubator. I fed them with artemia and microworms but only some seem to be eating. Most of them just rise a cm from to bottom and then sink again.


Is this normal?

 

[fishgeek]

intially they are called wriggler because of the moveemtn you describe

at abut the week mark they will start to swim(free swimming) and this is when the mother would normally start leading them out to feed
prior to this the egg sack will ahve been maintaining them

andrew

 

[beleg]

But its already more than a week (8 days since they hatched).. Some of them do eat artemia, they have pink bellies. But mostly they just swim sticked to the ground. In short jumps. and none seems to show interest in microworms

 

[fishgeek]

poor bouyancy? belly sliders though i would have expected some to get off the floor
slower development in this batch to some degree temperature dependant

see what the other more experienced breeders have to say

 

[beleg]

Yeah.. I couldn't find the term. Most of them are belly sliders. A few swim quite well , rest rarely lift off the bottom. Whatever the reason is there a cure for this or is the batch lost?

 

[gan]

Beleg - not so nervously. Give them a chance :wink:

GAN

 

[beleg]

I noticed that there is a cyclops bloom (and an accompanying fry loss) in my tank. I am feeding my fry in an incubator , like Ted Judy's design, with mostly microworms and artemia. The cyclops were definitely not a problem, or were not numerous that I'd notice them before the fry.

I wonder if they do kill the fry (i have read that before) or they are just blooming because of artemia & microworms.

The cyclops are almost as tiny as the artemia themselves, the breeding pair doesn't even try to eat them. In a few days the remaining fry should be big enough to eat them but they all still slide on their bellies.

The tank has Cyanobacteria, could that be causing the fry to belly slide?

 

[fishgeek]

whats the water liek, nitrite levels
i think real cyanobacter fix nitrogen and hence willl grow when it is higher?

 

[beleg]

Nitrites should be low but i haven't measured nitrates. I do %25 water changes weekly but heavy feeding with live/frozen food introduces lots of nitrates and phosphates. I might get a kit and do massive change according to the results.

 

[beleg]

Resurrecting an old thread. My A. agassizi have rewarded me with a school of 50 or so fry which started free swimming today.

A bad picture, sorry for the dirty glass i came home very late