CA/SA Cichlid Fry Growing Tecniques????

  • We are currently upgrading MFK. thanks! -neo
The moment they have became free swimming I syphon them out into a bucket and put them into a small 5g tank I got cheap, it has both day and night lights.
I normally stock the tank with sand and perhaps one piece of wood or rock, in the centre so that the fry can feel safe. I feed them frozen brine shrimp for a few days and then I get these hikari gold pellets, the Red kind, and i get a big sized one, put it in a cup of warm water and I smoosh it into a piece of paste, then I drop that into the tank, and the fry pick at it and feed from it for a day or two, this gets them to grow big and colourful fast. and because its wet they are just tearing off mouth sized pieces which works really well for me.

thats my technique anyway, looks like we have many knowledgable breeders on here! good luck
 
I think the best think you can do for your fry is to condition the parents well before the milt ever reaches the egg. I've had inconsistent results when it comes to growing out fry. After trying many different methods I've found that my fry not only benefit from being raised with the parents, but that their rate of growth and development is influences greatly by the condition of the parents before procreation; i.e. nutrition, water quality, body weight, etc.
It sounds far fetched and slightly illogical but I believe that there is some truth in this. I've provided minimal care for fry from well conditioned parents and noticed steady growth and good vigor. In turn, I've fussed over fry from poorly conditioned, stressed or newly transitioned parents and gotten lesser results.
Ah, the wonders of child rearing.
 
Hey Ed, that is neither far fetched, nor illogical. Healthy parents generally produce healthy offspring, and it has been proven with a number of species of fish that there is antibody activity in the females ovaries & eggs, and that maternal immunity can indeed be transferred to their fry. In commercial aquaculture they will sometimes use this knowledge to vaccinate fry, before they are even born.
http://www.sciencedirect.com/science/article/pii/0044848694900817

A couple of more examples of how the condition of the parents (in these examples the level of vitamin C in the parents diet) can play a role in the health of their offspring.

Numerous studies have pointed to a higher vitamin C demand during reproduction in fish. Supplementation of broodstock diets with vitamin C higher than that required for growth has been shown to improve hatchability and fry condition of tilapia (Oreochromis mossambicus) (Soliman et al., 1986b); sea bass (Dicentrarchus labrax) (Terova et al., 1998); gilthead sea bream (Sparus auratus) (Terova et al., 1998); and rainbow trout (Oncorhynchus mykiss) (Dabrowski and Blom, 1994; Blom and Dabrowski, 1995a).
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There is a rise of seminal ascorbic acid and ovarian ascorbic acid, during vitellogenic growth (Sandnes, 1984; Dabrowski, 1991b; Dabrowski and Ciereszko, 1996a, b). Blom and Dabrowski (1995a) found that 350 mg of ascorbic acid was required per kg of broodstock diet to achieve 90% saturation of ova. Dietary levels of ascorbic acid that are higher than those to meet the growth requirement are needed to optimize seminal ascorbic acid concentration (Blom and Dabrowski, 1995a, b; Ciereszko and Dabrowski, 1995; Ciereszko et al., 1996; Dabrowski and Ciereszko, 1996a; Liu et al., 1997). It was found that low levels of vitamin C in seminal plasma of rainbow trout were associated with a higher percentage of mortality or abnormal embryos in the offspring (Dabrowski and Ciereszko, 1996a; Ciereszko et al., 1999).
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RD. said:
Hey Ed, that is neither far fetched, nor illogical. Healthy parents generally produce healthy offspring, and it has been proven with a number of species of fish that there is antibody activity in the females ovaries & eggs, and that maternal immunity can indeed be transferred to their fry. In commercial aquaculture they will sometimes use this knowledge to vaccinate fry, before they are even born.
http://www.sciencedirect.com/science/article/pii/0044848694900817

A couple of more examples of how the condition of the parents (in these examples the level of vitamin C in the parents diet) can play a role in the health of their offspring.
Click to expand...

Interesting read, thanks for posting.
 
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