Starting A Brackish Tank

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mdo135

Feeder Fish
MFK Member
Jan 25, 2007
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Medway Me.
I have been doing lots of research on brackish setups, as I am planning to do one myself. I thought I would share what I found with mfk. This should answer most questions for those new to brackish. Here we go.

What is Brackish?- Where the ocean meets outward flowing rivers, saltwater and freshwater mix. This half salt/half fresh mix is called brackish water.

Why Brackish?- Brackish waters are home to an amazing diverse and unique group of animals, many can be kept in the home aquarium. Also If you want to do a saltwater tank in the future, brackish is a great start and to practice. Also not many people do brackish, it is very unique in aquariums. Also, brackish tanks are easy to maintain since the fish from brackish waters are designed to withstand frequent salinity and water parameter changes unlike both fresh and saltwater fish.

Substrate- Brackish water areas always are covered in a sandy, silty, or muddy material. Sand is probably the best option, as it is easiest to maintain. You could use marine aragonite, "Minerial Mud", or sand.

Heater/Filter- Be sure that your heater and filter are rated for both fresh and salt water. Other than that everything is the same as for fresh or salt.

Protine skimmer?- Not necessary, in fact it may remove some important trace elements of the brackish water. Save them for full salt.

Plants?- There are almost no plants that can survive in brackish water. Neither freshwater plants or saltwater plants/corals will do well. Stick with plastic plants. The only acception is the mangrove, as you will find out later in this article.

Marine Salt. I like Instant Ocean but any brand of ocean salt will be fine. No freshwater salt! that is not the salt that brackish animals need in the wild. It is half ocean water and half freshwater!

How much salt?- your salt level should be around 1.005. but it also depends on your type and stock. Yes you need a meter to test this. The instructions on the salt you buy should tell you how much you need per gallon for a brackish setup.

Types of Brackish- I will put thease on seperate posts. Read the setups then look at the pic below to see where on the river they are.


(Please don't post any comments until I am done:))

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Estuaries are most people's idea of where brackish water occurs. Estuaries are slow-moderate flowing and the aeration from your filter should be adequete.

Temperature:
80-82 F
pH Level:
7.5-8.5
Decoration:
Sparesly decorate with rocks and branchy driftwood (that has been cured to prevent leaks).
Salt:
Most of the fish here migrate down the estuary to the ocean when they are several years old, so you will have to mimic this the best of your ability. Buy all of your inhabitants young and start this tank with around 2 tablespoons of marine salt per gallon of water. Every 6 months, add an additional tablespoon of salt per gallon of water during water changes. Stop when you are adding about 7 tablespoons of salt per gallon of water or when your hydrometer measures a reading of 1.020-1.025. This should take about 3-4 years and they should not be rushed into full marine water. Keep in mind NOT to add the salt directly to the tank.

Stocking suggestions
Monos, Scats, Sabae Monos, Colombian Shark Catfish.

estuary1.jpg

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Towards the end of the outward flowing rivers that empty into estuaries, there is brackish water. These are fast flowing regions and you should attain an additional powerhead directed to flow to the side to provide increased aeration and movement. These set-ups are a great home to mollies, gobies, puffers, and silversides and (in the case of Bumble Bee gobies) can be as little as 5.5 gallons.


Temperature:
80-84 F
pH Level:
7.5-8.5
Decoration:
Decorate with taller plants in the background and shorter ones on the side. Add one or more rocks, and wood.
Salt:
Around 1-2 tablespoons of marine salt per gallon of water or a specific gravity of 1.005-1.010 will be adequate for the full lives of most of these fish. Green Spotted Puffers prefer saltier conditions with around 3-5 tablespoons of marine salt per gallon of water or a specific gravity of 1.010-1.020.

Stocking Suggestions-
Siamese Tiget Fish, Mollies, Glassfish, Celebes Rainbowfish, Knight Gobies, Bumble Bee Gobies, Green spotted puffers, Fugure Eight Puffers, Orange Chromides, Ceylon Puffer, Targetfish

marsh1.jpg

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This is the one where you can have live plants! Mangrove swamps are slow flowing waters covered in floating plants and mangrove roots. These set-ups are designed to be part land, part water. For this reason, it is recommended to use a 55g or larger aquarium so that there is enough swimming room for the fish. The best filtration method in this case would be a cannister filter with enough tubing to extend into the water.


Plants:
Live Mangroves are the obvious choice for this tank. They should be planted on the edge of the water and on the land section. As for aquatic plants, since most are not readily available, plastic plants are best but you could try Java Moss, Java Fern, Cryptocorne Bekketti, Hairgrass, and Vallisneria.
Temperature:
82-86 F
pH Level:
7.5-8.5
Decoration:
The usage of tree root ornaments would be ideal in this setup. Many mangroves and partially subdued lighting will make this tank more realistic. These swamps usually also have floating plants covering the surface but most of these plants are not available commercially (although you could try java moss).
Salt:
Around 3 tablespoons of marine salt per gallon of water or a specific gravity of 1.010-1.015 will be adequate for the full lives of these fish

Stocking Suggestions-
Anableps, Archer Fish, Mudskippers, Fiddler Crabs.

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mangrove1.jpg
 
maintenance of brackish water is no different than that of fresh or salt, just keep you salt levels regular. Other than that it's reletively easey. Well thats it everything you need to know about brackish setups.
 
Any questions or comments feel free to post now! I know its not perfict so add what you want.
 
never listed in which of the environments g. tile (brackish moray eels) live in kinda curious if i'm doing it right for them othr than lots of caves
 
Brackish moray eels go back and forth between full salt and brackish, I am almost posetive that they require a Estuary setup. As long as you have lots of hiding places Im sure they will be fine. I like your avi is that your eel?
 
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