me waffling about my precious fry. safe stocking levels...

[johnhuddleston]

I currently have a 40 gallon tank containing 120 or so 1/4 inch fry.

Thats one third of a gallon per fish. (one sixth actually as the tank is
only half full) massively overstocked when going by numbers, but surely any
number of fry have a much lower bio load than full grown fish of the same
number of inches.

At what rate should i thin them out?

I don`t want to wipe out all but a few fry right at the start as i`d like to
see them grow a bit and pick the best ones and gradually reduce their
numbers.

I know i can bend the gallons per inch of fish rules when the fish are so
small. but don`t know by how much, should i try and work it out by physical
weight of fish?

I know the fry amount to about 30 inches of fish, in terms of weight you`re
not even looking at 10grams whereas adult fish run into 100s of grams

Anyone else tried to raise/cull goldfish like this? I don`t want to overload
the tank and at the same time i don`t want to lose out on some nice fish...

Any ideas?

Oh, and what size do the fry need to be before filling the tank fully so as
not to crush them with water pressure?

--

[Geezer From The Freezer]

John,

That should be fine. You can fill the tank as soon as they start getting larger
bodies.
Keep testing the water, you'll know when it starts becoming an issue. Keep a
diary/log book.

[K. Sher]

How did you manage to feed them? I got fry about two months ago, and they
all died. I tried the crushed boiled egg yolk thing, but the fry ignored it
and eventually starved to death (I guess). Maybe I was feeding them
incorrectly?


"johnhuddleston" > wrote in message
...
> I currently have a 40 gallon tank containing 120 or so 1/4 inch fry.
>
> Thats one third of a gallon per fish. (one sixth actually as the tank is
> only half full) massively overstocked when going by numbers, but surely
any
> number of fry have a much lower bio load than full grown fish of the same
> number of inches.
>
> At what rate should i thin them out?
>
> I don`t want to wipe out all but a few fry right at the start as i`d like
to
> see them grow a bit and pick the best ones and gradually reduce their
> numbers.
>
> I know i can bend the gallons per inch of fish rules when the fish are so
> small. but don`t know by how much, should i try and work it out by
physical
> weight of fish?
>
> I know the fry amount to about 30 inches of fish, in terms of weight
you`re
> not even looking at 10grams whereas adult fish run into 100s of grams
>
> Anyone else tried to raise/cull goldfish like this? I don`t want to
overload
> the tank and at the same time i don`t want to lose out on some nice
fish...
>
> Any ideas?
>
> Oh, and what size do the fry need to be before filling the tank fully so
as
> not to crush them with water pressure?
>
> --
>
>
>

[[email protected]]

raising fry is extremely difficult. the Chinese breeders dont try, they put the fry
into ponds of "green water" and let them feed themselves. THE breeder of Philly
veils feeds freshly hatched brine shrimp and says the fry need moving food. He also
says the fry need absolutely pristine water or they die. Ingrid

"K. Sher" > wrote:
>How did you manage to feed them? I got fry about two months ago, and they
>all died. I tried the crushed boiled egg yolk thing, but the fry ignored it
>and eventually starved to death (I guess). Maybe I was feeding them
>incorrectly?


~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
List Manager: Puregold Goldfish List
http://puregold.aquaria.net/
www.drsolo.com
Solve the problem, dont waste energy finding who's to blame
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Unfortunately, I receive no money, gifts, discounts or other
compensation for all the damn work I do, nor for any of the
endorsements or recommendations I make.

[Geezer From The Freezer]

"K. Sher" wrote:
>
> How did you manage to feed them? I got fry about two months ago, and they
> all died. I tried the crushed boiled egg yolk thing, but the fry ignored it
> and eventually starved to death (I guess). Maybe I was feeding them
> incorrectly?

I used crushed egg yolk on my first fry batch - it didn't go down to well and
killed the
lot. Changed to freshly hatched baby brine shrimp and then crushed pro gold or
fry food.
Out of 50 fry I ended up with 8, my own stupid fault some of the deaths too
(filter too strong etc) -
rectified this by placing filter floss over the intake.

If I ever decide to breed again, I'll be more prepared, but it is a lot of work
to raise them.
Especially earlier on, water changes every day etc.

[K. Sher]

What is this green water? A Chinese breeder who currently owns a goldfish
store in Canada told me he fed them "red water fleas". He told me that in
Chinese, so I am assuming he meant daphnia. I don't think it is as safe as
brine shrimp though.

> wrote in message
...
> raising fry is extremely difficult. the Chinese breeders dont try, they
put the fry
> into ponds of "green water" and let them feed themselves. THE breeder of
Philly
> veils feeds freshly hatched brine shrimp and says the fry need moving
food. He also
> says the fry need absolutely pristine water or they die. Ingrid
>
> "K. Sher" > wrote:
> >How did you manage to feed them? I got fry about two months ago, and they
> >all died. I tried the crushed boiled egg yolk thing, but the fry ignored
it
> >and eventually starved to death (I guess). Maybe I was feeding them
> >incorrectly?
>
>
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> List Manager: Puregold Goldfish List
> http://puregold.aquaria.net/
> www.drsolo.com
> Solve the problem, dont waste energy finding who's to blame
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> Unfortunately, I receive no money, gifts, discounts or other
> compensation for all the damn work I do, nor for any of the
> endorsements or recommendations I make.

[johnhuddleston]

I crush a pinch of yolk in an egg cup with a spoon until its a cloudy liquid
and then add it to the water through a strainer, this catches the bigger
lumps... the yolk floats like a mist in the water. looking through a pocket
microscope you can see them munching the particles, the fry don`t seem to
bottom feed from what i`ve seen so maybe your yolk wasn`t high enough in the
wayer for long enough?

this is my first time too so don`t take too much notice of my advice :) I
think i`ve been lucky as most of the fry that hatched are still alive.

"K. Sher" > wrote in message
news:mnfoc.449903$Ig.38546@pd7tw2no...
> How did you manage to feed them? I got fry about two months ago, and they
> all died. I tried the crushed boiled egg yolk thing, but the fry ignored
it
> and eventually starved to death (I guess). Maybe I was feeding them
> incorrectly?
>
>
> "johnhuddleston" > wrote in message
> ...
> > I currently have a 40 gallon tank containing 120 or so 1/4 inch fry.
> >
> > Thats one third of a gallon per fish. (one sixth actually as the tank is
> > only half full) massively overstocked when going by numbers, but surely
> any
> > number of fry have a much lower bio load than full grown fish of the
same
> > number of inches.
> >
> > At what rate should i thin them out?
> >
> > I don`t want to wipe out all but a few fry right at the start as i`d
like
> to
> > see them grow a bit and pick the best ones and gradually reduce their
> > numbers.
> >
> > I know i can bend the gallons per inch of fish rules when the fish are
so
> > small. but don`t know by how much, should i try and work it out by
> physical
> > weight of fish?
> >
> > I know the fry amount to about 30 inches of fish, in terms of weight
> you`re
> > not even looking at 10grams whereas adult fish run into 100s of grams
> >
> > Anyone else tried to raise/cull goldfish like this? I don`t want to
> overload
> > the tank and at the same time i don`t want to lose out on some nice
> fish...
> >
> > Any ideas?
> >
> > Oh, and what size do the fry need to be before filling the tank fully so
> as
> > not to crush them with water pressure?
> >
> > --
> >
> >
> >
>
>

[Geezer From The Freezer]

johnhuddleston wrote:
>
> I crush a pinch of yolk in an egg cup with a spoon until its a cloudy liquid
> and then add it to the water through a strainer, this catches the bigger
> lumps... the yolk floats like a mist in the water. looking through a pocket
> microscope you can see them munching the particles, the fry don`t seem to
> bottom feed from what i`ve seen so maybe your yolk wasn`t high enough in the
> wayer for long enough?
>
> this is my first time too so don`t take too much notice of my advice :) I
> think i`ve been lucky as most of the fry that hatched are still alive.

John, probably right. Egg goes bad soooo quickly, I'll never use it again.
Glad your fry are doing well. Expect the most fatalities between week 1 and
week 12.

[[email protected]]

green water is heavily fertilized and there is lots of algae and lots of bacteria
live on the algae and lots of little critters live on the algae that the fry eat.
zooplankton. yes, daphnia AKA water fleas. your are correct, daphnia are not as
safe as brine shrimp. but in a big pond it doesnt appear to be a problem, just when
fed in tanks. Ingrid

"K. Sher" > wrote:
>What is this green water? A Chinese breeder who currently owns a goldfish
>store in Canada told me he fed them "red water fleas". He told me that in
>Chinese, so I am assuming he meant daphnia. I don't think it is as safe as
>brine shrimp though.


~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
List Manager: Puregold Goldfish List
http://puregold.aquaria.net/
www.drsolo.com
Solve the problem, dont waste energy finding who's to blame
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Unfortunately, I receive no money, gifts, discounts or other
compensation for all the damn work I do, nor for any of the
endorsements or recommendations I make.