|
Reply.
Hello Sandra. We're please to read in your email
that the concentration of nitrates in your aquarium
water has gone down, since you started changing
20% of the water in your aquarium each day.
Nitrate is a chemical
ion with a chemical formula,
NO3¯, that
indicates nitrate is composed of one nitrogen atom
and three oxygen atoms.
If you buy gravel,
rocks, and other items that are labeled for use
in aquariums, those items will contain only trace
amounts of nitrate. Those trace amounts will dissolve
into your aquarium water but will not significantly
increase the amount of nitrate dissolved in your
aquarium water.
But if you have rocks,
or gravel, or other items in your aquarium that
are not labeled for use in aquariums, those items
may contain large amounts of nitrates. Those nitrates
will dissolve into the water in your aquarium and
greatly increase the amount of nitrates in your
aquarium water.
Most of the nitrates
in aquarium water are produced by beneficial bacteria
that live in your aquarium and change ammonia,
which is
very toxic to fish, into nitrate, which is not toxic
to fish. Click
here to read more about the chemistry that produces
nitrate from ammonia and oxygen.
If you change the
water in your aquarium infrequently, the concentration
of nitrates will slowly increase as a result of
the beneficial bacteria changing ammonia into nitrate.
The concentration of other chemicals will increase
too, and water with too much of these various chemicals
is not good for most types of fish. Fish like fresh
water with low amounts of nitrate.
Get rid of nitrates
and other chemicals in old stale aquarium water
by changing 20% of the water in your aquarium twice
each week. Don't overreact and change more than
20% of the water on one day, unless you have a catastrophe.
High nitrates is not a catastrophe.
In our facility we
have a nitrate test kit, but we very rarely use
it. Because we regularly change some of the water
in each aquarium, and so we know the nitrates will
not be high.
Summary: be sure
everything you put in your aquarium is labeled for
use in aquariums, and be sure that you change 20%
of the water in your aquarium twice each week. Then
you will not have a nitrate problem, and you will
not need to test the amount of nitrates or worry
about the nitrates.
|