Will These Really Hatch

[haleem8777]

I was on eBay when i came across the 2 products below and i was wondering if they do hatch how do you raise the fry.
 
http/www.ebay.co.uk/itm/20-eggs-Pseudomugil-gertrudae-Aru-II-Rainbow-fish-Like-Killifish-/221326110345?pt=UK_Pet_Supplies_Fish&hash=item3388106e89
 
http/www.ebay.co.uk/itm/Yellow-Forktail-Rainbow-fish-20-Eggs-like-Killifish-/321257463062?pt=UK_Pet_Supplies_Fish&hash=item4acc6fdd16

 

[fluttermoth]

Same as any other fry; a decent sized tank with a cycled filter, very small food and plenty of water changes.
 
There's no reason why the eggs won't hatch; in the wild they spawn in peat/leaf litter where the eggs stay as the pond dries out (although not completely, they will stay damp) and hatch when the next rains come and the pond fills up again.

 

[haleem8777]

I am just worried that they will not hatch. so out of 5 how hard would it be.

 

[fluttermoth]

I've never tried killifish tbh, buddy, although I have bred and raised a few small egg layers
 
I would say 3 or 4, but that's mostly feeding the fry.
 
With very small fry, like these, it's a real problem getting food small enough for them to eat at the start; they're too small even for BBS. You'll need to set up a tank, preferably on a sunny window sill, with a sponge filter and loads of plants, and let the water go green or culture infusoria (and that's harder than it sounds, IME!). 
 
You might have some success with microworms; couldn't get cultures of those when I was breeding, so I'm not 100% how big they are (I'm sure someone will know

)