BREEDING
BETTAS AND JARRING UP THE YOUNG:
There are two basic
methods useful for spawning these fish. The choice of which one
to use is determined by your goals for the breeding. For producing
show quality fish, high numbers of fry are required, so method Number
1 is best because it offers maximum environmental and fish control.
Method #1 : Controlled Method
The focus of this method
is to keep the breeders in the best possible shape and produce the
highest number of offspring possible. It is hoped that some very good
fry will show up among the multitude produced. These very good ones
can be entered in shows and/or used for further breeding.
No live or artificial
plants are used in this method and no other living things
(other than food organisms) are added to the tank. The female
is protected from the male by placing her in a transparent
chimney of some sort (a glass kerosene lamp
chimney or cut-off Pepsi bottle). She can be released and re-caught
with only minimal disturbance. If you keep her in something else and
have to net her to let her out or pen her up then she will get
flustered and spawning will take a lot longer or may not happen at
all.
If she is willing to spawn, she will change
from having either a solid colour or distinct horizontal barring to
distinct vertical barring of alternating light and dark bars.
The spawning proceeds
with the male wrapping himself around the female so that their vents
are lined up. In this way, the eggs can be fertilized as soon as they
are expressed. At this point all kinds of things can go wrong,
but hopefully things will proceed normally.
It is best to let the
male care for the eggs (photo39) as he is usually more reliable. The
female should be penned again in the chimney.
Some sort of low-level light should now be provided through the night to enable
the male to care for the eggs and nest. Should the light go out, he
might fall asleep and not remember what he was doing when he awakens.
He might now look at the eggs as a treat and eat them all! I use a
small flourescent night light and I tape it up with electrical tape
so that only a small hole allows only a tiny ray of light to shine
on the nest. Be careful, if too much light gets out into the room
from this night light it can disrupt the light cycle of your other
breeders and they may not spawn.
This is the biggest reason
for spawning failure... improper light control!
This is called photo-period
control. You must control the duration of light your breeders are exposed
to. Limit this to only 12 hours.
Over the years, when
people call me regarding their fishes' inability to spawn, the problem is TOO
MUCH LIGHT! Either they have left the room light on too long in the evening
(only 12 hours is best eg. sunrises at 7 am. then lights must go off at 7 pm.) or they have not excluded all light coming into the room. Just a bright
street light shining in the window at night can disrupt their hormonal balance
and throw them off of the spawning. So you might have to install a light-excluding blind on the window in your fish room.
When the fry hatch in three days a good male will busy himself mouthing
the fry and return them to the bubblenest. Most males are very
dedicated fathers and are unfailing in their dedication to the fry.
Some will even refuse to eat at this time but just keep working on
rounding up the young. Be sure to rest him well after the fry are
free-swimming. A few feedings of live white worms will be a nice
reward for him and bring him back into spawning condition.
The fry can be seen hanging tail down from the bubbles. (click to enlarge)
TIPS FOR SUCCESS: Controlled Method
Use 1 teaspoon un-iodized salt (predissolved)
per gallon of water.
If using municipal tapwater be sure to neutralize the chlorine first
using sodium thiosulphate (available at any
pet store).
Don't use any gravel on the bottom of the tank, as the eggs will get
lost in it and the female may get cut by it as she is attempting to
escape the male.
Syphon out wastes and add some new pre-conditioned water every
second day.
Keep the water temperature at 78-82°F (25-28°C).
Feed the fry two to three times daily; syphon out uneaten food immediately.
Start your micro-worm culture early so there will be lots available
should your fish produce young.
Do not use live plants, snails or any other live fish in the
breeding tank.
The fish require about 12 hours of light per day in order
to stay in spawning condition.
Place the inverted bottom half of a styrofoam cup on the water surface in the breeding tank to
house the bubblenest.
Method # 2 : The Natural Method
This method involves
the setting up of a small ecosystem/home for your fish
and allowing them just to do what comes naturally. Probably
a ten gallon aquarium would be best to use as it would have sufficient
space for some of the young to survive. With this method natural
or plastic floating plants are used to almost fill the aquarium space
and provide shelter for both the female and the young.
The breeders
(one male and one female) are released into this plant-filled
tank and the male will hopefully begin to build a bubble-nest among
the plants on the surface within a few days. Soon, the female will
investigate the nest and be chased away by the male. This will cause
her to ovulate and within a week to ten days spawning should take
place.
These breeders should
be fed live or frozen brine shrimp or live white worms alternating
with some high quality, vitaminized flake foods, to keep them in top
shape and condition them for breeding.
The heavy
cover provided by the plants should protect the female from getting
too shredded and exhausted from the male's pursuit. The plants will
also serve to anchor the nest, but you still might want to drop the
inverted bottom of a Styrofoam cup (photo 44) over his bubbles to
stabilize it. Because of the plants, however, it is often very difficult
to know when spawning has taken place, so careful observations are
required. When the male is hanging under the
nest with his snout toward the surface, look for yellow patches in
among the silver-white bubbles which would indicate that eggs are
present in the nest. When you think eggs are present, some
light must be provided through the night. Either a nite-lite or just
some light from a street light is enough.
When the fry hatch out
and then become free-swimming, they will eventually escape into the
plants and begin feeding on the microscopic life found there. Soon,
however, you will have to provide some micro-worms and newly-hatched
brine shrimp for them as they will pick the aquarium clean of the
infusoria (microscopic amoebas and parameciums).
The female betta will
eat some of the young bettas as she finds them, but a good male will
continue to grab them and return them to the nest site (to the disgust
of the little ones), long after they are capable of looking after
themselves.
Even with the female
eating lots of the young, quite a few should get to a size where she
can no longer catch them. Lots of excitement results as you
spot these growing young ones and notice their changes and colour
development. (click to enlarge) The parents are capable of spawning
every three days, but will more likely produce another batch of young
every week if they are in good condition and healthy. Soon the
aquarium will be teeming with life and colour!
Snails can be used in
the tank, but they may cause problems should they become too abundant.
They have an uncanny knack for finding the eggs in the nest.
They will, however, help to keep the aquarium clean. This is
important because with the plants in the tank it will be very difficult
for you to syphon out the wastes without disrupting things and losing
betta fry. Except for pygmy catfish, no other fish should be put in
the tank, however, as they will eat the young at a greater rate than
the parents.
TIPS FOR SUCCESS: Natural Method
I think
that a timer for the light on the aquarium is a good idea. Try to keep the light
cycle to 12-14 hours and have the dark period completely dark.
Do not use salt or any medications in the aquarium unless you can determine
that they are harmless to the species of plant you have chosen. Of
course, this does not apply if you have chosen to use plastic plants.
If using municipal tapwater be sure to neutralize the chlorine first
using sodium thiosulphate (available at any
pet store).
Don't use any gravel on the bottom of the tank, as they eggs will get
lost in it and the female may get cut by it as she is attempting to
escape from the male.
Syphon out wastes and add some new pre-conditioned water every
second day.
Keep the water temperature at 78-80°F (25-27°C).
Feed two to three times daily; syphon out uneaten food immediately.
Start your micro-worm culture early so there will be lots available
should your fish produce young.
The fish require about 12 hours of light per day in order to stay
in spawning condition.
Supplemental micro-nutrients (fertilizer) may be required for the live plants.
They are available at any good pet store.
Place the inverted bottom half of a styrofoam cup on the water surface in the breeding tank to
house the bubblenest.
FREQUENTLY ASKED
QUESTIONS ON BREEDING BETTAS :
1.
The male will not blow a bubblenest.
Solution: Check the temperature.
It should be 78-80°F. If OK, then add Bettamax to the water as the male may have
some kind of infection. Even a slight infection will affect
the males ability to blow bubbles.
If this works, the fish will spawn right in the medication and the
fry will develop normally. If this doesn't work, the male is
a dud and is in danger of being shredded by the female.
2.
The male cannot wrap around the female.
Solution: Sometimes this is a problem that the male has and the only solution
is to let them continue trying, but don't watch them as it becomes
very frustrating. If it is the females fault then you will have
to try another female. Don't worry about the female becoming
eggbound as she can drop them on her own and will turn around and
eat them.
3.
The fish embrace, but no eggs result.
Solution: This problem is usually
a result of the female being chronically overfed earlier in her life.
The engorged stomach has pushed her internal organs backward to the
point that the ovary has stretched and the eggs cannot be released
at the proper time. When the female swims off by herself and
relaxes then the eggs come out. This is usually the result of
someone pushing the growth of their young fish in hopes of getting
them to market-size quicker and is very frustrating to the breeder.
The only solution is to purchase a new female from another source.
4.
The fish spawn, but no eggs hatch even though they are well cared
for.
Solution: Often on the first attempt, the eggs do not get fertilized for some
reason. Usually when a young female spawns for the first time it is
a long time (many embraces) before the first eggs come out and the
male has used up all of his sperm before the first eggs appear, so
they do not develop. Give the fish a rest for a week, then put them
back together again and they should produce a good batch now.
5.
The fish spawn, but the male will not look after the eggs.
Solution: This is usually the result of the males' hormone level dropping and
can be remedied by leaving the female in the tank the next time they
spawn. Confine her in a coke bottle
with the bottom cut out. This way the male can still see her and be
stimulated, but she cannot get over to the nest where she might eat
the eggs.
If this doesn't work, you can sometimes pen up the male and let the
female look after the eggs and some of them will do just as good of
a job as the males. Care must be taken to remove her as soon as the
first fry is free-swimming and swimming horizontally.
Sometimes, however, it is caused by something as simple as the male
not having enough light at night. If it gets too dark and the
male falls asleep, when he wakes up in the morning, his hormone level
may have dropped to the point where he cannot remember what those
good tasting little white things are and he will eat them all.
6.
The female beats up the male and he abandons the nest.
Solution: Usually this happens when
the female is let out with the male just after the lights have come
on in the morning. The female wakes up quicker than the male
and his drowsiness is mistaken for a reluctance to spawn! She
then shreds the male to raise his hormone level. This usually works
and spawning proceeds later on with a somewhat modified male, but
sometimes the male never recovers and the pair will have to be separated,
rested for a day or two and tried again.
If none of this works and the female continues to beat on the male,
then she may not be a female but she may be a short-finned male! The
other possibility is that the male is a dud and you may have no alternative
but to try another.
7.
The female eats the eggs before the male can get them into the
nest.
Solution: This is often thought to
be happening, when it is in fact not happening. Usually the
female picks the eggs from the bottom of the tank, while the male
gathers those that are falling through the water. When she rises
to put them into the nest the male pressures her for the next embrace,
so she doesn,t have time to place them in the nest. Careful observation
will sometimes reveal that when this happens she gets the eggs into
the nest by releasing them in a bubble and they simply float into
the nest on their own.
8.
The fish do not stop spawning after the eggs have stopped coming
out of the female.
Solution: The
spawning usually is completed in about an hour and a half. If it continues
on for three to five hours the male in danger of succumbing to exhaustion
and might never recover. To protect the male, the female must be penned
up, if this is happening.
JARRING UP THE YOUNG:
If you want to keep your young bettas looking
nice you will have to jar them up as soon as you can tell the males
from the females. This occurs at approximately 2 months of age. There
is no sure way to tell the sexes apart, but the males usually are a
little darker than the females and the anal fin of the males is a little
more pointed or elongated at the posterior or back end.
Here is a simple system for keeping young bettas
in soda pop bottles that I have used for a couple of years now. It
offers complete isolation of each fish from the others so disease
spread is almost impossible and yet it is easy to drain each jar and
refill it with new water.
First you need to collect quite a few 1 and1/2
litre clear, plastic bottles. Just go out around the neighbourhood
on re-cycling day and it won't take long.
Now you need to drill a piece of 3/4" plywood
with holes just the right size and properly spaced to accept the necks
of these bottles. The size of the piece of plywood is dictated by
how many jars and how many rows of jars that you want to keep. You
will attach this piece of drilled plywood to the wall and install
some wooden legs to support it from the floor.
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Now to prepare the jars, you will have to cut
the bottoms out of each using an exacto knife. Then after roughing
up the inside of each neck with sandpaper you glue in a male nipple.
Use PVC nipples so that they will glue properly. Polypropylene
ones will not bond!!! Seal-all glue is the glue of choice
here as it is non-toxic to fish. First, coat both surfaces with a
liberal layer of glue and then allow them to dry for a few minutes.
Now jam the two together and allow to dry overnight. The next day
apply another bead of glue around the edge of the nipple inside the
jar. There will be gaps here caused by the glue shrinking as it dries.
When this is dry the next day, the seam should be watertight, if the
gluing was done properly.
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Now standpipes must be made to fit tightly into
the nipples so you can drain the bottles at will. I used plastic tubes
with soft plastic hose pieces glued onto one end. I filed the edges
of the hose piece with a bastard file so that the standpipe would
slip easily and tightly into the nipple.
Now you need to prepare the drain pipe by drilling
holes in a black 1 and1/4 inch ABS pipe just the right size to allow
you to glue in another PVC male nipple. I used a drill press with
the pipe properly supported and clamped to reduce the chances of injury...
be careful! With some care and concentration you should be able to
get these holes in a pretty straight line and have them properly spaced
to line up with the holes you have drilled into the plywood.
Threading these holes is done with a steel male
nipple. Once it is started in the hole, use vice-grips to screw it
all the way in and then back it out.
The glue of choice to attach the nipples is ABS/PVC
transition glue. Clean each hole and nipple with solvent and then
coat them with glue. Quickly screw the nipples into the threaded holes
and let them dry for 24 hours.
Using copper wire or stainless steel hose clamps
you can attach a piece of plastic hose to each of the bottle nipples.
Now you can insert the hosed bottles into the holes in the plywood
and bring the holed ABS pipe up underneath them and attach the other
end of the hose to the nipples in it. Now you can clamp or wire the
hoses to the nipples. If you have done this properly you should have
no leaks!
I have my pipes drain into a laundry tub and then
to a sewer line. I have a vent riser at the other end to allow me
to flush each drain pipe to reduce smell from any accumulating waste.
I put a 45 gallon plastic tub with a heater in it under all of this.
I fill it with water, de-chlorinate with drops and add 1 tsp. of salt.
Using a submersible pump with a hose attached I can fill all of my
jars in no time. I use a toilet float to shut off the water before
it overflows and a foot switch to allow me to turn the water flow
'on' and 'off' easily.
I pull the standpipes and drain
1/2 of the water from each jar 2 - 3 times a week depending on the
size of the fish in them. When the fish are about 5 months old or
almost full grown, I move them to 1 gallon jars. Be very careful
when pulling the standpipes, you have to really concentrate because
bettas natural instinct is to dive for the bottom when frightened
and if they do that with the standpipe pulled... down the drain they
go... bye-bye!