Famous for their ability to shoot down insects with a precise jet of water. As surface-dwelling predators native to mangrove estuaries, they require hard, brackish water to thrive long-term. They have a high prey drive and will eat any fish small enough to fit in their mouths. A tight-fitting lid is absolutely mandatory as they are exceptional jumpers.
At a Glance
Tank Requirements
Water Parameters
Temperament & Compatibility
Available Varieties
Each variety inherits the species defaults above. Only differences are highlighted.
Standard (Adult)
Fully grown adult. Requires a massive footprint for top-water swimming space and a strictly brackish environment. Capable of eating smaller tank mates.
Differs in 1 trait from base species
Also known as: Adult, Full Size
Juvenile (Grow-out)
Often sold at 5-8cm. While they can temporarily live in smaller setups, they grow quickly and will soon require a massive adult enclosure and increased salinity as they mature.
Differs in 4 traits from base species
Also known as: Baby, Small Archerfish
Banded Archerfish (Brackish) Care Guide Summary
The Banded Archerfish (Brackish), scientifically known as Toxotes jaculatrix, belongs to the Oddballs family group. Adults reach a maximum size of approximately 25 cm and have a compressed body shape with a moderate growth rate. Classified as semi-aggressive, this species primarily occupies the surface zone of the aquarium and produces a high level of biological waste.
To thrive, the Banded Archerfish (Brackish) requires a brackish required aquarium with a minimum volume of 300 litres and a tank length of at least 120 cm. Water temperature should be maintained between 24°C and 30°C, with a pH range of 7–8.5 and a general hardness of 15–30 dGH. A moderate water flow is preferred.
The Banded Archerfish (Brackish) is a rewarding species to keep, provided its core environmental needs are met. This species is available in 2 varieties: Standard (Adult) and Juvenile (Grow-out). Each may differ slightly in size, temperament, or care needs, so it is worth checking the specific requirements of the variety you plan to keep.
Banded Archerfish (Brackish) Habitat Setup
When setting up an aquarium for the Banded Archerfish (Brackish), a moderate water flow best suits their natural preferences. Because this species occupies the surface zone, the aquarium layout should prioritise adequate surface area with floating cover to make them feel secure near the waterline. Useful additions include a sand substrate to accommodate their sifting behaviour and driftwood, which can serve as both a hiding place and a dietary supplement. Keepers should note that a tight-fitting lid is essential, as this species is a known jumper.
Banded Archerfish (Brackish) Compatibility Notes
Classified as semi-aggressive, the Banded Archerfish (Brackish) is adaptable and can be kept singly or in a small group, offering flexibility when planning a community tank. When choosing tankmates, any fish small enough to fit in its mouth will likely be eaten, conspecific aggression can be intense, especially in smaller tanks, and their energetic swimming style may stress more sedentary or timid species. Selecting tankmates that favour different water layers from the surface zone can help reduce competition and territorial overlap.
Frequently Asked Questions About Banded Archerfish (Brackish)
How big does Banded Archerfish (Brackish) get?+
What tank size does Banded Archerfish (Brackish) need?+
What water parameters does Banded Archerfish (Brackish) need?+
Is Banded Archerfish (Brackish) peaceful or aggressive?+
Can Banded Archerfish (Brackish) live alone?+
Does Banded Archerfish (Brackish) have any special tank requirements?+
Does Banded Archerfish (Brackish) need a lid on the tank?+
Similar Species
Bumblebee Goby (Brackish)
Brachygobius xanthozonus
A miniature, bottom-dwelling goby famous for its striking black and yellow stripes. While they are often sold as freshwater fish and can survive in it temporarily, they are highly susceptible to fungal infections in fresh water and truly require a brackish setup (SG 1.002-1.005) to thrive long-term. They are notoriously picky eaters, often ignoring flakes in favor of live or frozen foods (like bloodworms or brine shrimp).
Scat (Brackish)
Scatophagus argus
A highly active, large schooling fish found in Indo-Pacific estuaries. 'Scatophagus' translates to 'dung-eater', pointing to their voracious, omnivorous appetite and the massive amount of waste they produce. While juveniles can tolerate light brackish water, adults strictly require heavy brackish to full marine conditions. They possess mildly venomous dorsal spines.
Fiddler Crab (Brackish)
Uca sp.
Fiddler Crabs are semi-terrestrial invertebrates that absolutely require a specialized tank (paludarium) with access to dry land. They CANNOT survive fully submerged and will drown. Furthermore, they require brackish water for long-term survival, despite often being incorrectly sold as freshwater pets. They are social, highly active scavengers.
Mono Sebae (Brackish)
Monodactylus sebae
A striking, deeply compressed (diamond-shaped) schooling fish native to the estuaries and mangroves of West Africa. While juveniles are frequently found in freshwater or light brackish water, adults strictly require high brackish to full marine conditions to survive long-term. They are hyperactive, grow extremely tall, and require massive, open aquariums to accommodate their schooling nature.
Figure 8 Puffer (Brackish)
Dichotomyctere ocellatus
A small, highly intelligent, and interactive pufferfish known for the distinctive figure-eight pattern on its back. While often sold as freshwater fish, they strictly require a low-end brackish environment (Specific Gravity 1.005-1.008) for long-term health and a full lifespan. They are aggressive fin-nippers and strict carnivores that require hard-shelled foods (like snails) to keep their continuously growing teeth trimmed.
Green Spotted Puffer (Brackish)
Dichotomyctere nigroviridis
The Green Spotted Puffer is a highly intelligent but notoriously aggressive fish. While frequently (and incorrectly) sold as a freshwater species, they strictly require brackish water that increases in salinity as they mature, eventually needing high-brackish or full marine conditions as adults. They have beak-like teeth that grow continuously and must be worn down by a diet of hard-shelled foods. Best kept entirely alone.