n the fall of 2004 I bought a mature male and female. They
had a size of 6-7 cm. none of these had bred before. They
were put in a community tank on 92 US gallon tank (350 liter);
together with 6 wild caught angelfish,
Pterophyllum
altum, and 6 wild caught
Corydoras duplicareus.
The only filtration the first 2 months was an external filter
with a turnover of 1200 L/H. It took them exactly 2 months
from they were introduced to their first spawn.
It only took a cold water change with more or less the same
hardness to get them going.
The first attempt took place in a cave I made for them out
of slate. (see pic above).
The first spawn:
I first discovered the fry after the yolk sack was all
used up, and the fry were more and more tempted to explore
the rest of the tank. The male however would not let the
fry out of the cave, some managed to escape and were never
seen again. Once I saw with my own eyes the male pushing
a tetra tabimin into the cave, as time went by I became
more and more convinced that he gave this to his fry.
At the same time I was considering selling the 6 angelfish
since the likelihood of them spawning was slim. The 6
were sold late one afternoon in Dec 2004, and the very
next day when the light came on I saw fry all over the
tank, on the wood, on the plants and on the glass, in
eager search for food. At this time an internal circular
pump was added, pumping 2000 L/h. To me they looked like
they were about 1 month old, and I could not count them
because there were so many of them.
Under normal circumstances they would have left the cave
2-5 days after the yolk sack had been absorbed, but the
presence of the angelfish had most likely had the effect
that the male had kept them in his cave until it was safe
enough for them to leave.
An obvious conclusion of this is that the male is a good
father who is capable of knowing the level of danger before
letting his fry out of the cave. Of all the fry from the
first attempt only 8 survived. In the tank it was unknown
how many they were from the start. The main reason of
this loss was the lack of food.
Water values in the 92 US gallon tank (350 liters):
Ph: 6,5-6,8
Temp: 27°C (80.6 °F)
K h: 4
Gh: 6
No2:0
No3: 10
Ext filter with a turnover of 1200 L/H and circ. pump
2000 L/H going at half its capacity. (Max 9,14 its Volume)
The picture below show three out of seven from the first
breeding attempt. At two months old they were 2 cm in
size, aren’t they cute?.
Second breeding attempt:
The second breeding attempt was also in the 92 US gallon
tank (350 liter), but this time in another cave made by
Dr Gribb (user name in Nowegian forum) which was added
two days prior. Now the whole spawn left the cave 7-11
days after the hatch, this time most of the fry got lost
in the tank due to lack of food. The first month the fry
have a rather whitish colour, the yellow colour developed
after 4 weeks, those who stay white, or get whiter will
eventually die.
The third spawn:
The third spawn took place in a 42-gallon (160 Liter)
tank, 2 days after a new cave were introduced to the tank.
Immediately after the cave was put in the male inspected
the cave thoroughly, he went in and out like crazy, in
and out several times, the female positioned herself nearby,
without being chased off, obviously interested. Believe
me it was quit I sight
The next day I got my superstition confirmed, all the
way inside was the male who was fluttering quite hectic
over the eggs. The male did so for 5 days until the eggs
hatched. The fry nurture on the yolk sack in 4-5 days.
On the fourth day the male was seen outside the cave and
then further and further away from the cave. I chose to
remove the third and fourth spawn 1-2 days after the yolk
sack was used up. The reason for this was I suspected
the survival rate would increase by putting them in a
tank by themselves. I used water from the main tank, and
they did grow faster. Although I lost fewer fry this way,
the male gets a little upset when I remove the fry, he
hides behind the heater for a week or so, and is anxious
of any movement in front of the tank, so moving the fry
is not recommended.
A 45 L tank was already been put up for them. This is
based on personal experience. Each time I counted while
I moved them I ended up with over 40 fry all together.
Water
values in the 42 US G tank (160 liters):
Ph: 7,2
Temp: 29°C, (84.2°F)
Kh: 5
Gh: 3
No2: 0
No3: 10
Ext filter with a turnover
of 700 L/H + internal filter 1200 L/H (about
12 times)
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Grow
out tank 11 US G (45 liters):
Ph: 7,1
Temp: 25 °C (77 °F)
Ch: 5
GH: 3
No2:0
No3:10
One Eheim aquaball 2212 with
a turnover at 650 L/h and one Eheim aquaball
2208 with 480 L/h (25 times its volume)
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The pair’s offspring was kept in this
little 11-gallon tank with the measurements
60cm x30cmx25cm, with 2 15W T8 tubes. In order
to promote algae growth I left the lights on
for 14 hours, since algae is a good nutrient,
beside that they were only fed crushed tetra
tabimin and Sera vipachips. The 11 gallon tank
consist of today of 65+ fry, who were moved
back in with the parents after 2 months. The
fourth spawn consisted of 25 fry + those 3 fry
he threw out just after the hatching.
Deviation:
Some of the fry I got were born with
a brown spot. Some had it on their back, pectoral
fins, and nose.
I only know of 2 breeders who have experienced
this phenomenon.
After I inquired about this in a foreign forum,
came the confirmation that this has happened
to others.
The reason for is this a single amelanistic
male which was exported from Paraguay and was
spawned with the normal coloured female and
later bred back with his own daughters to fix
the mutation.
Amelanistic is an absence of dark colored pigments
that results in a tan / yellow colored fish
(as in L144) with normal coloured eyes.
Now after 8 spawns of this pair I would say
they are rather easy to spawn, just as easy
as the regular Ancistrus species.
All photo's by author.
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