sp. "Ankavia" or "Ankavia River"
or "Ankavia River"Eric Bodrock
of the more recently imported species of Madagascar rainbowfish into the US.
These resemble the B. geayi that has been in the hobby for years.
Their body shape is the same but their body color is faint green and
orange and blend together.
Older females have a bit more of a dark band running thru their body,
which the males are void of.
Their fins lack the intense red/orange/yellow color and black trim of the
B. geayi, but do show an orange band in most of the tail with faint white
first glance you would think that you were looking at a washed-out B. geayi.
picked a group of five of these up about six months ago at the size of one and a
half inches. It
appeared that I had two males and three females.
Within a couple of weeks I ended up losing a male from the group.
The remaining male has grown now to three and a half inches, the females
only to two and a half inches.
I set them up in the same manner as I did with another species of Bedotia
(species “White-Fin”) that I received at the same time, alone in a bare
A sponge filter with a good airflow provided filtration.
Water changes of fifty percent done every ten days keeping the pH between
7.2 – 7.4, temperatures in the upper seventy degrees Fahrenheit range. My TDS
meter read 242 at time of set up (and spawning).
A floating yarn mop and a sunken mop were added for them to deposit eggs
consisted of live black worms, live baby brine shrimp, frozen bloodworms and
assorted flake foods offered usually one to three times a day.
with the other Madagascar rainbows, spawnings occur without much trouble.
Eggs are deposited in the mops and easily seen scattered thru the yarn
strands. Mops are then removed once a week and placed into a smaller tank for
fry will appear several days after mops are pulled.
The fry are tiny and resemble flicks of pepper dashing about in mid
is added for first food, Microworms added after about a week to replace the
baby brine shrimp is added shortly after the Microworms.
Fry grow slow for the first month or so and then growth rate picks up.
The fry show a dark body color until they reach about an inch and a
quarter, then they start to lighten up a bit.
have also been able to catch fry right from the tank where they can be seen
swimming in the open water with the breeders.
As long as they are well fed, the parents don’t seem to bother with
as with breeding any fish, if you want the babies, get them separated from other
fish as soon as possible to eliminate any chance of being eaten.
Another thing I always do is separate fry (or eggs) into two different
containers, just in case there are problems with a tank…. like the saying
goes…. never put all your eggs in one basket!
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