Unlike cats or dogs,
fish are hard to take care of in that their entire world depends on the
quality of their water. Different chemicals naturally build in water and
depending on the water and its source, different toxins can be present.
Betta fish, like many fish, are considered hardy and able to thrive in
nearly any condition. This is a false sentiment because thriving is not
the same thing as surviving and poor conditions are severely cut the
lifespan of a betta.
The first thing to understand are the
different chemicals to look out for, some of which are more important
to be concerned with in regards to different tank sizes. It is important to have
a water test kit that can test for these chemicals--it can save a
betta's life!
The first and easiest way to remove these
problems is for tanks that are 5 gallons or more, which can establish a
cycle. A water cycle is the control of chemicals and bacteria in the
water through the use of a filter, making water changes easier.
The following contains
basic information only.
Ammonia (NH3)
This chemical is the
most common cause
of betta death. Ammonia develops from natural waste, the build up of
not eaten food, and from the excretion from gills; in the same way
humans breath out Co2, betta breath out ammonia. Ammonia poisoning comes
in many forms including red/purple gills, lethargy, and red stripes
appearing across the body, among symptoms.
Ammonia can be
removed from the water in several ways. First is through a water cycle.
If the tank in question is under 5 gallons or establishing a cycle is
not a possibility, then the second way to remove ammonia is through
water changes. Changing the water is the quickest, most effect, way to
rid a tank of most problems.
NitRITE (NO2-)
Nitrite
is a chemical excretion of good bacteria that eat ammonia. These
bacteria do not have time to appear in a non-cycled tank, so those who
cycle must pay careful attention to this chemical. Nitrite can harshly
poison a betta, with some symptoms including rapid gill movement and
extreme lethargy. It can also cause "Brown Blood Disease," which is the
imparement of a betta's ability to carry oxygen and circulate blood,
causing gills to appear brown. This can lead to the suffication of the
fish.
The only way to get rid of nitrite is do water
changes. Some live plants can help decrease nitrites in the water but
water changes are still required.
NitRATE (CO3-)
Nitrate
is a chemical excreted by nitrite-eating bacteria. Although this
chemical cannot harm a betta as much as nitrite or ammonia, it can still
poison the fish and kill it. Nitrate poisoning includes spastic
swimming, bent spine, curling of the body, and twitching.
Nitrate also can only be removed through water changes.
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A liquid water test kit, essential for monitoring water conditions. Photo by Petco |
The Dangers of Hard Water
In
addition to toxic chemicals, water hardiness can harm betta fish as
well. Hard water is water that contains high and/or concentrated amounts
of minerals. Betta fish can tolerate a water hardness of 5-20 dH or
70-300 GH ppm, preferably with conditions in mid-range. Water hardness
is not a usual problem in most areas. Some places like Las Vegas,
Nevada have very hard water that is not good for any animals, let alone
fish. This is not typical as most water systems contain water
softeners, making water safer for consumption.
Because
most places have water softeners in the system, it is often not
necessary to worry about this but if there is a need to lower the water hardness,
there are products that pet stores and fish stores sell to lower the
hardiness. It is important not to just place these conditioner into the
water but to carefully read the instructions on how to mix them in.
Chlorine
There
is always some level of chlorine in water supplies in order to kill
harmful bacteria that would otherwise be present in it. However,
chlorine is very deadly to a betta fish and any level above 0.5 ppm will
result in death. Water conditioner is needed as a result.
The
types of water conditioners vary and treat different things. Thus, it
is important not to purchase just any water conditioner at a store. Sometims
the cheapest product will not remove every harmful element in the water,
for chlorine is not the only purpose of conditioning treatment. The Seachem Prime conditioner brand, for example, is one of the best brands of water conditioners for that it covers
everything that can make water toxic for fish. API Stress Coat,
Aqua+Plus, and other conditioners are recommended as well. It is important to
read labels before purchase in order to ensure that what needs to be
removed from the water will be.
pH
Water
pH is not hard to mantain. pH is the balance of acidic or base content
in water. It is not good to be too high in acid or base, so test kits
are essential for mantaining proper water for betta fish. The range of
pH measures from 1-14, with 1 being acidic, 7 being neutral, and 14
being basic. It is ideal to have a pH of 7 for a betta fish, as a pH of 6
is ten times more acidic than a pH of 7.
Betta fish can
survive in a pH range of 6-8 but it is important to try and mantain a pH
of 7 in order to give a more neautral condition of the water, in case
of pH spikes.
Total Alkalinity (KH)
This
is a measurement of how well water can resist pH changes. This is a
good reason not to use distilled water for it has a total alkalinity of 0
KH, which means that any change to the acidic or basic content in the
water will be easily increased of decreased. This can stress the fish
and sometimes kill it in extreme situations.
Tap water has
a total alkalinity buffer added to it already, making it ideal for tank
water. There are some products on the market that can help increase
alkalinity, if need be.
Chloramine
This
is a combinition of chlorine and ammonia. Chloramine tend to be
unstable and can evaporate over time. Water sanitation plants have begun
adding chloramine to water in order to kill harmful bacteria, as it
does a better job than chlorine. This is a very harmful additive or a
betta fish and must be removed from the water to ensure a healthy life.
Water
conditioners that remove chlorine will only remove chlorine and not
chloraine, unless otherwise specified. Prime water conditioner was
specifically mentioned earlier because of its coverage of this chemical
as well. If only chlorine is removed from the water, then ammonia is
left behind. This can cause an ammonia spike which, as stated earlier,
can be deadly.
The only way to remove chloramine is through a proper conditioner.
Phosphates
Phosphate
in addition to sunlight cause algae growth. Phosphates get into water
through food or through previous presence in tap water. Water changes
are the best way to remove phosphates from a tank, although there are
products to remove them if they get to extremes. Additionally, some live
plants remove phosphates as well.
Water Change Schedules for Best Tank Health
As
can be seen, water changes are the best solution for tackling most
problems. A clean source of water is an assurance of better betta
health. However, water changes are dependant on tank size. This next
section is a basic guide to the most popular tank sizes used for betta
fish. Bigger is always better and means less changes, especially if
cycled.
1 gallon: Do a 100% water change every other day. This sized tank cannot establish a water cycle as it is too small.
2 gallons:
50% water changes 2-3 times a week and one 100% water change weekly.
Another tank size too small for cycling, it is important to maintain
regular water changes. Gravel vacuums will make cleaning easier and help maintain better water.
5 gallons:
This is the first tank size that can be cycled and thus is has two
different water change schedules. For cycled tanks, perform 50% water
changes weekly. For non-cycled tanks perform 50% water changes twice a
week and one 100% water change weekly. Non-cycled tanks are much harder
to clean and it is recommended that a cycle is established for the this
purpose.
10 gallons: For
cycled tanks, perform 50% water changes weekly if there is only one
betta inhabiting it. If it is a community tank, add another 50% water
change to its schedule. For non-cycled tanks 50% water chanes should be
performed twice a week and a 100% water change bi-weekly.
20 gallons: Tanks this size should only be cycled. 50% water changed should occur each week.
There
are many other tank sizes but these are some of the most common. For
in-between sizes, adjust the schedule to your best judgement. Although
these are not absolute, strict, must-have schedules, they are
recommended for the best health of betta fish.
What is cycling?
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A diagram of the nitrogen cycle. Photo by PetSmart |
When
referring to a "cycle" aquarists are referring to the Nitrogen Cycle,
which is created by a series of chemicals and bacteria that are
naturally present and created in water. Cycling is not
easily possible in
smaller tanks and generally can only be established in tanks of 5
gallons or more, even if the small tanks are equipped with a filter. The
cycle begins with ammonia, which is a toxic chemical created from fish
and food waste that gets dispersed into the water the animal pumps
through its gills. The cycle's purpose is to convert ammonia into safer
substances for your fish through creating good bacteria. The beneficial
bacteria turns ammonia into nitrite, then nitrite into nitrate. Although
these substances are still harmful to the fish, they can be tolerated
for longer periods of time and cause less harm as a result. On average, a cycle can be established between 4-8 weeks, depending on the method you choose to use.
Note:
Unless an aquarium is filled with a certain eco-balance of live plants,
partial water changes are still required. This article will not cover
live plants.
The Fishless Cycle
This
cycle is performed without the fish in the tank. This is the preferred
method of cycling by many aquarists, for ammonia will not be able to
harm fish while establishing the cycle. The following are needed to begin a fishless cycle: A fish tank, a filter, non-treated water, a water-test kit, and an ammonia source. The ammonia source commonly used by hobbyists is either fish food or pure ammonia, with pure ammonia being the preferred choice due to more precise accuracy and measuring abilities. Follow the steps for completing a fishless cycle:
1. Prepare a clean, empty, fish tank that has not been washed with any chemicals. Clean and add substrate if desired; substrate provides a home for the beneficial bacteria to live in and although it is not always necessary since beneficial bacteria tends to house itself within filter media, substrate can help with this process.
2. Add non-treated water to the tank. It is essential not to add conditioners to the water at this time since no fish will be present and water conditioners can alter test reading results.
3. Connect and add filter to the tank. The type of filter is not important but depends on preference. If filter media from a
previously cycled tank is available, it can be added at this time in order to help jump-start the cycling process. If not available, proceed to the next step.
4. Add the ammonia source. If the source is fish food, the amount added should be noted so when replenishing the ammonia source a similar amount is used and the cycle becomes easier to monitor. If the ammonia source is pure ammonia, then use an eyedropper to measure the amount being added to the tank.
5. Allow the filter to run and preform a water test within the first week. Sometimes it is needed to replenish the ammonia source for the beneficial bacteria and so testing the water is critically important throughout the cycling process. Eventually the ammonia will be eaten into beneficial bacteria and nitrite readings will begin to show up, followed by the same process eventually resulting in nitrate readings. Once the levels are at a safe range, the cycle is complete.
The fishless cycle can vary in length of completion depending on many factors such as tank size, filter, ammonia source, live plants, and so forth. It can take from several weeks up to a two months to cycle, usually with the average one month.
The In-Fish Cycle
Sometimes aquarium hobbyists will cycle their tanks with their fish stock as the source of
ammonia. This can put the fish at danger because ammonia levels will
not be at a safe range and can harm their gills and general health.
However, it is still do-able and fish do not always get harmed or die in
the process. Like the fishless cycle, the same materials are needed to begin the cycle except this time the water will be treated and the ammonia source will be the fish itself.
Water changes
must be
completed on a regular basis to help reduce harmful chemical spikes and maintain balance in the water. It is important to test the water
regularly during the cycling process because any spike can hurt the fish
or kill it and testing the water can indicate a need for a water
change. Once ammonia and nitrite levels begin to read at 0 ppm and a
nitrate reading become available, the cycle is complete.
References
Bahamut285. "Water Chemistry Basics."
Water Chemistry Basics. Bettafish.com, 30 Mar. 2011. Web. 28 Sept. 2012. <http://www.bettafish.com/showthread.php?t=66595>.
F., Christine. "Water Changes."
Water Changes | Betta Fish Care. Nippy Fish, 01 Mar. 2011. Web. 28 Sept. 2012. <http://nippyfish.net/bettas-101/all-about-water/water-changes/>.
Nippy Fish. "Nitrogen Cycle."
Nippy Fish. Nippyfish.net, n.d. Web. 28 Sept. 2012. <http://nippyfish.net/bettas-101/all-about-water/nitrogen-cycle/>.