Taxonomy Archive

Brackish-Tolerant Fish Care Guides & Tips

Explore brackish-tolerant fish and invertebrate profiles with specific gravity, salinity tolerances, and water parameter advice.

Profiles 4

Beginner 3

Peaceful 4

intermediate Care Freshwater

Freshwater Flounder

Achirus achirus

Temperament: peaceful

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beginner Care Freshwater

Poecilia reticulata

Temperament: peaceful

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beginner Care Freshwater

Poecilia sphenops (primary); P. latipinna; P. velifera; P. mexicana

Temperament: peaceful

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beginner Care Freshwater

Pristella maxillaris

Temperament: peaceful

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Validate water volume, calculate stocking density, and test bioload before introducing new species to your aquarium.