C. eremius will actively search out spawning sites in the aquarium, with egg laying and tending
usually talking place in or on a cave-like structure.
Desert goby parents do cannibalize fry,
as will other adult fish in the tank. If you
want to succeed you will need a separate
fry rearing tank. You will also need to
separate fry of different sizes, as the bigger
ones can eat the smaller ones.
Fry are born free swimming most of the
time. Occasionally a few eggs will hatch
before their yolk sacs have been totally
absorbed and these young fry cannot
swim yet. They are not doomed. Just put
them in the rearing tank and allow them
to hop around until they absorb their sacs,
at which time they will begin swimming.
Fry are reasonably large. Size can vary,
but most are the size of a small newborn
guppy. Fry are strong and easy to raise.
It is very possible to raise young fry on
commercially prepared foods, however it
is my opinion that live foods are always
best for young fry. I use baby brine shrimp
and microworms as a first food.
Expect about 50 to 150 survivors out of
a spawn. Fry are fast growers. Sexing can
be done within a couple of months, and by
six months the fish are full size.
Buying Desert Gobies
Desert gobies are hard to find. If there
is a breeder in your area, you may get
lucky and find them at your local pet
store. They are not regularly imported
because of their short life spans and
specific needs. Buyers can occasionally
find them on Internet auction sites and
breeder’s personal websites. These fish
ship well and with little trouble.
When selecting fish you will want
young specimens. Desert gobies should
be purchased at a maximum of 2
inches, never larger if you want your
fish to live for any length of time.
Look for fish that appear comfortable,
not stressed. Fish should have their
bright colors on, their fins up, and they
should be active. It is best to buy from
a reputable breeder, or from a pet store
that buys from a reputable breeder. The
fish will need to be acclimated slowly
by putting them into a container with
their packing water, then pouring in
your own tank water a little at a time.
If you purchase healthy fish and
look after their needs, this species will
end up being on your list of favorites.
Hopefully the desert goby will once
again get the notoriety it deserves
as a cherished and popular aquarium
Desert gobies tend to spend most of their time resting on surfaces and substrate, and so any sand, gravel, and rocks used in aquascaping their tank
should be of the smooth variety.