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It is not a new concept, but one that has not been
readily used by many aquarists. That is changing and more and more
aquarists are finding an interest in this natural method of filtration for
their aquarium.
Mangroves are plants that can live
in freshwater swamps and brackish or saltwater areas along shorelines.
They have the ability to live in saltwater by straining freshwater from the
saltwater through their roots.
Batanta Island Rainbowfish -- Melanotaenia
misoolensis
In October 1948, a Dutchman by the
name of Lieftinck collected some rainbowfishes from a tributary of the Tama
River near Fakal Village on the New Guinea Island of Misool. Misool Island
is about 70 kilometres south-west of the Vogelkop Peninsula in Irian Jaya.
However, the collection remained unstudied in the Zoological Museum of the
University of Amsterdam in the Netherlands until officially described by
Gerald R. Allen in 1982. The species was named Melanotaenia misoolensis in
reference to the type locality.
Goyder River Rainbowfish
(Melanotaenia trifasciata)
The Goyder River Rainbowfish is the
red colour form, and is, in my opinion, the most spectacular colour form
of the species. As you can see from the above photograph, the adult males
(and to a lesser extent the females) display red colouration on the body
and blood red fins.
By way of contrast, the Coen River
Rainbowfish has a green body and orange fins.
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The
Rainbow Fish
Rainbowfish belong to the family Melanotaeniidae
and the closely related blue-eyed rainbowfish to the family Pseudomugilidae.
These families are found in Australia, Papua New Guinea and Irian Jaya
(Indonesia) .
In the wild, many species are endangered
because of human activity and the resulting destruction of habitat. This
problem is especially serious for the species from New Guinea. In captivity,
rainbowfish readily interbreed, and many of the specimens available in petstores
are hybrids or are of poor quality.
The Australian rainbow complex includes
many colorful, interesting, and in some cases, rather spectacular fishes.
Many species are easy to keep and breed and most make excellent community
tank fish. The rainbow complex includes fish genera such as Glossolepis,
Melanotaenia, Pseudomugil, Iratherina, Telmatherina, and Chilatherina which
are characterized by both an anterior and a posterior dorsal fin.
The Glossolepis incisus or New guinea
Rainbowfish is one of the most popular Rainbows. It is a brilliant ruby red
with flecks of silver scales scattered across its side. These fish live in
only one lake and its surrounding tributaries. The lake is in the Irian Jaya
region and is called Lake Sentani. This lake is at an elevation of 75 foot
above sea level. A tiny river connects this lake to the Ocean and accounts
for why there are some marine species found in the lake. This lake is very
abundantly overgrown with vegetation and periodic algae blooms, however the
water maintains a high level of clarity. The new guinea rainbowfish has been
established in the hobby for about 30 years now. It has been spawned quite
frequently because of its high demand in the aquarium hobby. Breeders use
spawning mops made of yarn and can mail eggs that adhere to these mops in
tiny vials. This has allowed the new guinea rainbowfish to become the core
species available to most hobbyists. These rainbows are easy to keep and
will eat just about any food offered. They do not tolerate acid conditions
and their optimum Ph range is 7.2-7.8. Hardness is not a factor that effects
rainbows and it is recommended to add a little salt or shell grit to further
mimic their native lakes water conditions. In keeping with the habitat of
lake sentani, the tank should be heavily planted. New guineas are best kept
in at least a 30 gallon aquarium and can live 3-5 years making them an excellent
long term resident to any community tank or species tank.
Nothing could be easier than breeding
rainbowfish, they are egg-layers and generally spawn amongst aquatic plants
and grasses. They will routinely spawn in a community aquarium, however the
adults will more than likely eat the eggs or hatching fry. If you want the
fry to survive, then it would be better to set up a special breeding tank.
Feed the breeders adequately with live foods if possible, to discourage them
from eating the eggs. It is not unusual for this species to lay 100 eggs
a day and the eggs will take about 7 days to hatch.
Glossolepis incisus was
first collected by the Dutch Explorer, Max Weber who undertook extensive
expeditions in the Dutch East-Indies (Indonesia) between 1890 and 1907. He
created the genic name Glossolepis in 1908 for the species G.incisus - a
magnificent, red coloured rainbowfish with shiny reflective scales. In spite
of their early discovery G.incisus was not introduced into the aquarium hobby
until 1973.
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Brackish Water Aquaria
FAQ
Table of
Contents
M
The
Mono
Monos are a schooling fish and while peaceful towards
fish of their own size, they will eat smaller fishes that will fit into their
small mouths. They are omnivorous and will eat all the regular fish foods.
They enjoy eating lettuce and spinach, as well as live foods.
CLICK HERE
The Mono requires a progressively higher water salinity
as it grows. Another name used mostly in Australia is the Finger Fish. This
is because it has an almost fingerlike dorsal and anal fin. The scientific
name Monodactylus means one finger. These fish have not been bred in aquaria.
They should be kept in a shoal in a deep tank.
Name: Monodactylus argenteus
Origin: Africa to Asia
Size... 8 inches pH....7.2--7.8 GH....10 Temp....
77°F
Food: Omnivore
This is a very flat, deep bodied fish. It has a
brilliant silver body with dark, vertical bands on its front. The fins are
edged in dark yellow and brown. It will do well in marine or fresh water,
but prefers aquarium salts.
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M
| Note: Mollies, swordtails, and some cichlids
do best at the lower end, and puffers,
archerfish,
and bumblebee gobies prefer the higher
salinity. |
| Brackish Water Species
Profiles
Sorted by Common Name
CLICK
HERE |
COMMONLY AVAILABLE
FISHES
Monos (Monodactylus spp.)
Scats and Argusfishes (Scatophagus and Selenotoca
spp.)
Archerfishes (Toxotes spp.)
Targetfish (Terapon jarbua)
Freshwater and brackish puffers (family
Tetraodontidae)
Chromides (Etroplus spp.)
Kribensis (Pelviachromis spp.)
Mollies (Mollienesia and Poecilia)
Rainbowfishes (family Melanotaenidae)
Silversides (family Atherinidae)
The Rainbow fish is a fish that
can be a Brackish Water
Fish.
Rainbowfishes are probably the brackish water fishes
best suited to aquaria.
Rainbowfish are found in rivers, lakes,
creeks, ponds, drainage ditches, springs, puddles, and swampy lagoons known
as billabongs. Due to the varied habitats of rainbowfish they are very adaptable
making them hardy aquarium fish. Rainbowfish can tolerate a large range of
ph values and are virtually unaffected by hardness in the water. Rainbowfish
are also related to a family of fish called Blue Eyes, these fish are often
found in Marine habitats and mangrove shores.
Rainbowfish are very aggressive feeders
and will eat mainly from the surface, so it would be a good idea to add a
few corydoras catfish to scavenge uneaten food. Upon dissecting Rainbowfish,
researchers have found that mosquitos are one of their main sources of food,
thus acting as a mosquito control in its natural habitats. Not only are they
useful in keeping mosquito populations in check, they are an important food
source for larger creatures. Rainbowfish are a very important link in the
food chain in these regions.
Some of their habitats are teaming
with rainbowfish, others are being threatened by loss of habitat, pollution,
and overfishing. one of the first Rainbowfish to be introduced to the aquarium
hobby was the Melanotaenia Splendid or commonly known as the Australian
Rainbowfish. There are many species that I plan to write about this month,
so keep up with each species.
If you remember ROYGBIV(red, orange,
yellow,green,blue,indigo,violet) the colors found in the spectrum of a rainbow,
I will start with a red rainbowfish known as Glossolepis Incisus or commonly
known as the New guinea Rainbow. Then I will move to an orange variety and
so on. I will write about spawning rainbows and give some tips on creating
conditions that will be optimum for keeping them. So remember if you must
go chasing rainbows make it the Rainbowfish instead of the real ones, because
I doubt you will ever find that pot of gold that is supposed to be at the
end.
Rainbows are easy to keep, colorful,
active, and come in a variety of sizes and shapes. They make beautiful species
or mix species tanks, and add color and variety to community tanks, whether
they are populated with peaceful or aggressive inhabitants. I recommend them
highly to the experienced and novice aquarist alike.
The
Rainbow Fish
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The thought of setting up a brackish water
aquarium by many hobbyists may seem more trouble than what its worth. however,
a brackish water aquarium suitably set-up with treated mangrove roots, rocks
and sandy substrate can make a very attractive display. |
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to stop or start
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The Brackish water system combines the
best features of both fresh and marine salt water systems. From fresh water
it has the breedability of the fish, the lower cost, and probably the best
of all, live plants. Many brackish water fish are as colourful as saltwater
fish.
Aquatic plants for the brackish aquarium
can be something of a challenge as most freshwater aquarium plants do not
tolerate salt. However, this could be a fascinating and rewarding experience
for anyone willing to try something different. If you are not that adventurous
you could use naturally looking plastic plants instead. Following is a selection
of commonly available fishes that can be successfully maintained in a brackish
water aquaria.
AMONG THE
MANGROVES
The thought of setting up a brackish water aquarium
by many hobbyists may seem more trouble than what its worth. However, a brackish
water aquarium suitably set-up with treated mangrove roots, rocks and sandy
substrate can make a very attractive display. Water temperature should be
maintained between 24 - 30°C, pH 7.8 - 8.4 and like any other aquariums,
levels of ammonia, nitrite and nitrate should be kept to a minimum. Brackish
water conditions can be obtained by mixing freshwater with saltwater at a
ratio of 3:1. Although, you could accomplish the same effect by adding about
10 grams of aquarium marine salt per litre of freshwater. Maintenance on
a brackish set-up is much the same as a freshwater aquarium. Partial water
changes should be made every 14 days and when changing the water do not forget
to add the salt supplement.
The Archer Fish
Click Here to the Archer Fish
There are six species of Archer Fish in the family
Toxotidae, and they occur in estuaries and freshwaters over a wide range,
from south-east Asia to the western Pacific. Depending upon species, they
range in size from about six to sixteen inches (fifteen to forty centimetres)
in length. Colouration and markings within individuals of a given species
can vary substantially over its geographic range, and also depending upon
many other environmental and physiological factors.
THE MUDSKIPPER
The following are the aquarium conditions that
I keep my gobies in :
Water temperature - 24 to 28 deg C
pH - 7.5 to 8.0
Salinity - specific gravity 1.003 to 1.006 (approx.
25% marine)
The Puffer,
Freshwater to Brackish Puffers, Part of the Family
Tetraodontidae
Puffers are of the family Tetraodontidae, meaning
four toothed. Their bodies are club-shaped and unarmored. When in danger
they have the ability to inflate with air and water making their bodies too
large to be consumed. Their eyes are widely spaced on rather large heads
and their bodies are often covered with spines or small plates. Their teeth
are joined in a sharp triangular frame giving them a beak-like appearance.
They are found in salt, brackish and freshwater and their flesh carries a
toxin. They range in size from several inches to several feet.
CLICK HERE
PUFFERNET
CLICK HERE
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ODDBALL
FISH
Four-eyed fish
False four-eyed fish
Mudskippers
In captivity they do well with a sandy bank on which
they can feed. This is quite difficult to make in a small aquarium, but since
Anableps are large fishes (30 cms in length) they eventually need an aquarium
at least 100 cms (4 feet) long if a school of these fishes is to be kept.
Depth is unimportant, 20 to 30 cms (8 to 12 inches) is adequate, so the best
tank is broad, long but shallow. The tank must be covered well: these fish
can jump surprisingly well.
The
GobyBumble Bee Goby
ABOUT THE GOBY
CLICK HERE
Just about all the sites I have visited cater for
the mainstream fish. You are lucky if you can find some information on brackish
species, but if you want gobies - forget it ! I think a lot of people don't
even know that gobies exist - yet they belong to the largest family of
fish!
The Violet
Goby
or Dragon
Eel
The Violet Goby is
a large, peaceful fish; highly elongate. It resembles an eel with dorsal
and ventral fins running the whole length of its body, and tiny eyes on the
top of its head. It has an arrowhead-shaped tail fin. It is a light violet
color and has some interesting features. It has a fused pelvic fin which
enables it to attach itself to the aquarium glass, using the fin like a suction
cup. It also has a large, trap-door type mouth, which is studded with easily
visible teeth. Most aquarium dwellers average 14 to15 inches when fully grown,
but have been known to reach 2 feet, and even longer in the
wild.
Chequered Rainbowfish -- Melanotaenia
splendida inornata
M.s.inornata are tropical fish, and
inhabit a variety of freshwater habitats with water temperatures ranging
between 24°C during the dry season and up to 33°C in the wet season.
The water is generally alkaline (pH 7.2 - 8.0); however, they are occasionally
found in acidic conditions (pH 6.5 - 6.9). They inhabit the river systems
of the Northern Territory and Queensland which flow into the Arafura Sea
and Gulf of Carpentaria - from Darwin to the tip of Cape York Peninsular.
They are frequently found in company with M.nigrans and M.trifasciata. They
are peaceful, hardy, easily fed, spawn readily, and have brilliant colouration.
M. trifasciata or "Banded Rainbowfish"
occur only in the far northern streams of the Northern Territory and Cape
York Peninsular. It is probable that the distribution of this species is
limited by water temperature as these areas of Australia are usually above
20°C with maximum temperatures approaching 30°C.
Bleher's Rainbowfish
Chilatherina bleheri is a lake and stream dwelling species found around the
vegetated shores of Lake Holmes and feeder streams in the Mamberamo region
of Irian Jaya. It was named after Heiko Bleher, a well-known fish collector
from Aquarium Rio in Frankfurt Germany, who collected live specimens in
1982.
Brackish Water Fishes are some of the most complex
biotopes
and can be found anywhere in the world where the
ocean
and rivers meet; saltwater marshes, estuaries, mangrove
swamps, etc.
UniqueFish
Swordtails and Platies on also fond of brackish
water,
The Swordtail and the Platy are two more of
the peaceful live bearing aquarium fish
that are easy to take care of.
They both enjoy the brackish water
Aquarium
K
Swordtail
CLICK
Platy
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SETTING UP THE BRACKISH WATER
AQUARIUM
(2a) Artificial sea water and measuring
salinity
(2b) Temperature, hardness and pH topics (buffering,
filter media, etc.)
(2c) Substrates and tank decor
(2d) Planting the brackish water aquarium
(2e) Diseases and remedies
(2f) Breeding brackish water fishes
The Brackish
water
The quantity of salt added is very much dependent
upon personal preference - what works best for the individual aquarist and
on the species of fish he or she intends to accommodate. I have known people
who are adamant that one teaspoon of salt per gallon is quite adequate while
others have successfully used up to three tablespoons per gallon. Generally,
anything that produces a specific gravity within the previously defined
parameters should produce favourable results.
BRACKISH WATER
FISH
There are many fish that do quite well in the brackish
aquarium. Many of these fish should not be kept in small aquaria as they
will get too large ; namely, the monos, both the golden (argenteus) and the
silver (sebae), the archers, the scats, the gobies, the silver shark cats
and the datnoides. The monos and the scats, in particular, are more interesting,
in my opinion, when they are allowed to swim in schools. All of the above
fish, as adults, should be given a fairly large aquarium for their best
interests.
There are several brackish puffers.
Some of these are cute when they are small but some of them can get to be
about six inches long, also they do become quite aggressive with other fish.
The puffers do have a very strong mouth, almost like a small bird beak. I
have seen them crush a snail's shell and spit out the shell remains. One
time a figure-eight puffer grabed a smaller, spotted puffer in it's mouth
and shook it like a dog might shake a rat. It is recommended that the puffer
be kept in an aquarium by itself, species wise.
Brackish fish do best in water with a salinity
of 1.015, or one to two teaspoons of salt per gallon, and a pH of 7.5 or
higher.
A List of brackish water
fish
Scats (Scatophagus spp.)
Monos (Monodactilus spp)
Anableps
Achirus species (chose the tropical
brackish soles)
Pipefishes
Sailfin mollies and their relatives
like mosquito
fishes (Gambusia species) and pike
livebearer
Belonesox belizanus
Etroplus spp. (usually E. maculatus),
Asian cichlids sold as
Orange and Green Chromides
Malayan halfbeaks (Demorgenys
pusillus)
Indian glassfish (Chanda ranga),
get the non-painted ones!!!
a number of brackish water killies
some African, like a lampeye
Aplocheilichtys spilauchen,
some Middle Eastern, like Aphaniops
dispar,
some native to USA eastern seaboard
estuaries,
like mummichog, Fundulus
heteroclitus,
and American
flagfish Jordanella floridae from
the brackish end of Florida swamps;
hermaphroditic Rivulus ocelatus from
South America,
Wester US desert pupfishes like
Cyprinodon salinus,
a huge number of the nominally freshwater
killies will
do splendidly in water that is quite
brackish -- and many
of the African and South American
species look as colourful
as marine fishes),
Asian Dantinoids (who get too big
for small tanks),
Asian and Australian
Archers,
some Australian rainbows like
Melanotaenia macculochi,
their compatriots Australian gudgeons
(gobies) like Mogurnda mogurnda,
a number of other gobies, like sleeper
gobies,
Additionally, the following plants are
said to be good for brackish tanks:
Java moss, Java fern, Elodea densa
(Anacharis), Hygrophila polysperma
As long as the water is not VERY salty:
Echinodorus tenellius (pygmy
chain swords), Sagittaria subulata,
S. graminea, S. gigantea,
Vallisneria americana, Water sprite,
Hornwort.
There are two main species of Siamese
Tigerfish..
Datnoides microlepis and Datnoides
quadrifasciatus.
D.
microlepis is the more hardy of the two main types of Tigerfish . The background
coloration of this fish varies from a clear creamy white to pale tan, with
verticle jet black bars on its body. The number of black bars actually depends
on its geographic location. Fish from the Asiatic mainland have six bars,
and those from the indo-Australian archipelago have seven.
These bars do not converge with age.
The
Scat
The genus Scatophagus includes the most widely
available fish, and are found all over the Indo-Pacific. Selenotoca is more
localized, restricted to New Guinea and Australia.
Scatophagus argus is available
in a range of colour varieties which may or may not be true
subspecies. The commonest variety reaches over 30 cms in length.
As a juvenile it is quite rounded in shape with variable colours but basically
a spotted brown to green. One variety, the ruby scat (Scatophagus argus
atromaculatus or "Scatophagus rubifrons "), has flecks of red over the body,
especially along the back. Both become bronze to silvery brown when mature,
with dark spots and a distinctive, hump-backed appearance. The African scat
Scatophagus tetracanthus has stripes running vertically on the body when
small, but is otherwise similar as an adult
Java
Fern
If you' ve had trouble growing aquatic plants,
you can probably grow Java Fern. Add to
this a beautiful medium to dark green
color
with forms ranging from bushy to leafy spikes
and you have what experts call a
"beautiful"
and "decorative" aquarium plant .We can
describe the care and maintenance
of this great aquarium plant.
CLICK HERE
Java Moss also enjoys the brackish water
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environmental changes, to saving the endangered reefs, and endangered species
with captive bred freshwater and marine life.
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Live Rock ,
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Taken next
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Inverts,
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Gulfview is one of the few aquaculturalists
permitted by the government to harvest rock specifically grown for the marine
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