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artificial hatching
- Subject: artificial hatching
- From: "Ed Pon" <edpon@hotmail.com>
- Date: Tue, 24 Jun 1997 15:34:21 PDT
One trick I learned from a discus breeder is that if the eggs are given
a rinse in hydrogen perioxide (the type you get from Walgreens) the
fungusing goes way down. I have also heard that some killifish breeders
like to change the water to tap water which contains chlorine, also to
prevent fungusing--this probably won't work well with apistos unless the
ph is adjusted.
Regarding someone's post on changing the environment so that apistos are
more likely to guard their eggs and fry until the fry are well
established--I have thrown pairs of apistos into 5 gallon tanks that
were overgrown with java moss and have found fry in the tank. I believe
the additional cover increases the likelihood that fry will live long
enough to be independent. Eating the eggs may be a survival-enhancing
trait in which the fish is better off eating the eggs, and thus using
the energy, if the environment is not conducive to the successful
rearing of fry. Dr. Ron Coleman's studies have indicated that type of
behavior exists in larger cichlids.
Regarding the better growth rate of fry when kept with the mothers--I
have also observed this phenomena. I believe that mothers are
constantly rummaging around in the substrate and stirring up food matter
for the fry to eat. Artificially raised fry only get a few feedings a
day. Mother-reared fry are probably constantly eating during daylight.