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What is Brackish water? Brackish water is a mixture of freshwater and saltwater. Brackish water cant be defined as either fresh or salt, it's right in between. Most naturally occuring brackish waters flucuate salinty (aka specific gravity) greatly due to the tides, tempature, precipitation, time of year, and day to day conditions. The most common brackish water environments can be defined as mangrove swamps, and estuaries, among many others. (Well, not the most common brackish environments but their aquarium inhabitants are by far the most commonly traded.)

Mangrove Swamps: A mangrove swamp is a coastal wetlands formed by the flow of freshwater into a swamp of saltwater. (often close to estuaries) These bodies of water mix, making brackish waters and collect in a swampy low water environment. The swamps tend to have a high salinty with vegetation limited to mostly mangrove trees and very few other salt tolerant vegetation. Though these trees grow in enormus numbers here. Their roots are extremely long and grow in the water while the bulk of the tree is on land. Quick little diagram below:



Estuaries: An estuary is formed when the ocean tide and a river mix on land. The runoff from estuaries can form slow flowing bodies of brackish waters such as streams, creeks, and ponds. Large amounts of vegetation grows in the least salty part of the estuary, while very few salt tolerant vegetation grows in the saltier parts. Salinty can vary greatly in estuaries. Quick little diagram below:

 

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Death is fair to everyone.
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I agree! Pinned. Thanks kingsnar!
 
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