A popular schooling fish, the author considers ember tetras Hyphessobrycon amandae among
the easiest to breed.
nauplii (baby brine shrimp) too early.
A few fry might be able to eat the larger
particles, but most of the fry cannot.
The extra food will just rot and cause
Feed small amounts and do not change
the water during this first week. At the
end of the week, do a small water change
( 10 to 15 percent) with aged water. Start
turning on the lights over the tank, but
arrange things so that only about half the
tank is lit to provide a shaded area for
the fry. Start feeding some microworms
and begin looking for fry that are eating
enough to get a full belly.
Two- to three-week-old fry will be
large enough to start eating baby brine
shrimp and commercial fry foods.
Water changes are important from this
point. A daily change of 30 percent,
combined with a few feedings every
day, will result in the fry growing
very fast. It is not uncommon for fry
to triple or even quadruple their size
during their third and fourth week
after becoming free-swimming.
MP. & C. Piednoir
Glowlight tetras Hemigrammus erythrozonus; tetras will usually engage in courtship during the
Requires Adequate Space
At some point, the fry will need to be
moved to a larger tank. A hundred fry can
be raised up to half an inch in a 10-gallon
tank, so long as plenty of water changes
are done to keep the water fresh. If doing
daily changes of 40 to 50 percent is not
possible, then a larger tank will be needed
to raise that many fry. The other option
is to avoid raising hundreds of fry. Move
20 to 30 fry from the spawning tank to
a 10-gallon to grow out. The other fry
in the spawning tank can be fed to the
community tank. This may seem cruel, but
it is actually realistic. The majority of fry
in nature become food for larger fish. The
few fish moved to a grow-out tank can stay
there until they are large enough to join
their parents in the community tank or be
given to other aquarists.
to Start With
A pair of emperor tetras Nematobrycon palmeri begin laying and fertilizing their eggs on a
The ember tetra grows to just about an
inch in length. They are amber yellow
with orange highlights and school together
well, even in small tanks. They are popular
schooling fish for planted tanks and make