Why fry die? and why there is alway be couple of big fat fry

[Jaxxnz]

hey guys, when raising a batch of frys they started out very evenly.

day by days 2 or 3 will die out, looked like they are not interest in feeding??

and you couple of fat greedy frys that nibble on anything u drop into the tank??

has any one had a perfect batch without losing any of the frys?

[ryanjury]

What are you breeding?

It could be what you are feeding, some fry are big enough to eat it and do well and some are starving..

[Jaxxnz]

oddballs Jags,

most seem to feed well with bldworm/bbs

but i alway get a few sitting at the bottom not eating

[ryanjury]

Could be belly sliders if they are sitting on the bottom and not feeding.. Jag fry should eat pretty much anything from day dot.

[Stella]

Ah evolution!

Some get the EAT AND BE BOLD genes, some aren't so lucky.

Also, the more eggs a fish lays, the fewer are likely to survive (in the wild). My bullies have just laid something like 300+ eggs, for the second time this year. She could easily lay several more batches like that over summer. For the population to maintain at the same level, TWO of them need to survive. This means they need to produce that many eggs in the hope of two surviving.

Ok, so aquaria are quite a different kettle of fish but the chances of you getting a complete batch to survive is incredibly remote. For starters you can't control their chromosomes.