live mosquito larvae always found their way
into the bloodworm water. Unfortunately, a
mosquito control program quickly ended my
breeding of the bloodworms.
I have a number of snails in one of my
discus tanks. How do I go about getting
rid of them?
I’ve never had the problem of snails in my
discus tanks, but would suggest removing the
adult-size snails and adding an adult guppy
or two to see if they can pick off and eat the
newly hatched baby snails.
I have several kinds of live plants in my
discus aquarium, and although they are
alive, they don’t look very healthy. How
can I get them to grow and prosper?
Discus usually reach sexual maturity at 12 months of age, though some may reach spawning age
earlier, and others later.
Discus and live plants don’t always do well
together. If you are keeping your discus in
the high 80s Fahrenheit, you will probably
always have plant problems. At a more
moderate 82°F temperature, you should be
able to grow most Cryptocoryne, as well as
Echinodorus swordplants, plus Cabomba
and Ceratophyllum (hornwort). Also,
aquatic plants require more light than discus
do. A photoperiod of approximately 12 hours
is common for tanks housing aquatic plants,
but discus don’t require that much light—in
fact, I visited one successful discus breeder
in Bangkok where it was almost necessary
to use a flashlight to see the fish! Naturally,
there were no plants in those tanks.
What do you think is the best water
hardness for adult discus and for
Under optimal conditions, discus should be able to live for 12 years or more—and they may be able
to breed for six of those years.
For adult breeding-age discus, a water
conductivity of about 75 to 125µ is used in
our hatchery. However, for all other discus
still in their growing periods, 500 to 600µ
is acceptable. The high microSiemens (µ)
count is necessary because of the mineral
salts necessary for proper bone and tissue
development in the fish.
How about salt in discus tanks? Is it
necessary at times?
If discus are doing well in their tank, then
I don’t see any reason for salt to be added to