Brackish aquariums9 min
Brackish aquarium planning from the start
Choose livestock, salinity, filtration and long-term adult housing before mixing freshwater and marine habits.
brackishsalinityplanning
AquaNexus knowledge library
Brackish aquariums
Original practical guides connected to the Aquatic Life Database.
2 guidesOriginal AquaNexus writingReviewed 2026-07-20
Practical guide6 min
How do I convert a freshwater aquarium to brackish?
A staged freshwater-to-brackish conversion that protects livestock, the biological filter and salinity stability instead of simply adding salt to the tank.
brackishconversionsalinityplanning
Practical guide6 min
How do I cycle a brackish aquarium?
How to cycle a brackish aquarium at the salinity it will actually run, while proving ammonia and nitrite processing before livestock are added.
brackishcyclingbiofilternitrogen cycle
Practical guide6 min
How should I acclimate fish to brackish water?
Practical acclimation for fish entering brackish water: verify destination salinity, minimise transport stress and change osmolality at a rate appropriate to the species.
brackishacclimationfishsalinity
Brackish aquariums8 min
Managing salinity without guessing
Prepare, measure and change brackish water consistently without sudden osmotic shocks.
salinityrefractometerwater change
Practical guide6 min
Which plants can tolerate brackish aquarium water?
A salinity-first way to choose plants for brackish aquariums without pretending every specimen of a “tolerant” species will thrive.
brackishplantssalinityplanted aquarium