Guppy Fry Needs by Mary Jane

Feeding Fry

New-born fry have tiny mouths and huge appetites!
They empty their stomachs every 20 minutes!
Of course,
it is not wise or feasible to feed them this often.
Feed your guppy fry 4 to 8 times daily.

When feeding fry it is important to offer a variety of food.
A couple of quality, high-protein flake foods should be given,
crushed up finely.
Flakes are an excellent food just before lights out.
Also, some breeders like to feed a small amount of flakes
before each feeding of BBS.
They believe that it helps the fish reap the benefits of BBS
by keeping it in their systems longer with the staple mixed in.
Unfortunately, BBS does have a laxative effect.


Baby Brine Shrimp (BBS)

This is generally accepted as the #1 food for guppy fry.
If you have a large guppy-breeding operation,
you will want to give them the ultimate – live BBS
that you have hatched yourself.
If however, you are carrying on a small hobby,
look for the convenience of frozen BBS.
Make sure though, that it is BABY Brine Shrimp,
not Adult Brine Shrimp.
BBS has much more nutritional value than Adult Brine Shrimp (ABS)
and can fit into the fry’s tiny mouths.
Remember, anything that is too large for fry to eat will go uneaten,
wasted, and it will pollute the tank.
The bonus in serving up live BBS is that what is not eaten immediately
will survive and be consumed later. =
Be conservative and keep a watchful eye when feeding frozen BBS =
since it will rot quickly if not eaten right away.


Egg Yolk

Another good fry food =
that you probably have in your refrigerator right now
is egg – specifically the yolk.
It can easily be made into a paste
that is simple and inexpensive.
It is a great source of protein that is eagerly consumed by fry
and adults alike.
Simply take a hard-boiled egg and remove the yolk.
Place it in a small, re-sealable container
and add a few drops of water while mashing it with your finger or a spoon.
When made into a paste you can feed TINY amounts to your fry.
It creates a cloud of protein for them which they will devour.
If you feed too much, however,
you will foul your guppies’ tank.
You can feed them yolk twice a day.
Adults will enjoy some egg too,
but use less water to create chunks for them to eat.
Liquid fry foods are also available in tubes similar to toothpaste.
Use sparingly, as it can easily pollute the water.



Microworms can easily be cultured and fed live,
an excellent food and a low-cost alternative to BBS,
however many breeders like to continue feeding BBS
in addition to microworms for variety.

They are thread-like worms imported from Europe
which are tiny enough for fry.
I use oatmeal or mixed baby cereal
as the culture medium which is very nutritious — healthy worms
means healthy fish food!
Microworms do not crawl very high on the sides of a container
and are easily contained.
There are many ways to harvest them, however, as seen above,
I lay pieces of rough scrubbing pads on the cereal
and swish them in a jar of water with a popsicle stick.
The worms, which have crawled onto the popsicle stick and pads,
fall to the bottom and any cereal will rise to the top.
Just pour this off a couple of times and the worms will be clean.

Fry will grow more quickly initially with microworms
and get about a 2 week head-start over fry fed BBS,
although they will eventually catch up.
However this growth spurt is important and helps in fighting off diseases.
Microworms will remain alive much longer in a tank
than brine shrimp, and do not swim away from the fry.
These tiny worms are also much easier to culture
and handle than BBS and after you have a culture going
it can last indefinitely.
Although this food is best fed to fry,
all guppies will benefit.
Feed sparingly to adults.



This is popular, easy fish food.
Also known as “water fleas”, there are magna and pulex varieties.

Magna is a bit larger and more suitable for guppies.
The best culture is green (algae) water.


Vinegar Eels

These are very tiny nematodes and only suitable for young fry.
They can be found in unpasturized cider vinegar,
or cultures can be purchased.
Simple and easy to “grow”:
all that is needed for a culture medium is cider vinegar,
an apple, and water.


Source; Guppyplace

About Igor Dusanic

Dedicated to the Fancy Guppy Hobby!
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