Species description

Care, breeding and tankmates

Fish profile

Temperament

Peaceful

They are extremely peaceful, somewhat timid, and very charming to observe. In a properly scaped, calm environment, they are confident and constantly active. They are entirely harmless to all other tank inhabitants, including tiny shrimp.

Diet

Micro-predator

Their tiny mouths require specialized micro-foods to ensure proper nutrition. They readily consume infusoria, finely crushed premium flakes, and microworms. Supplementing with live baby brine shrimp helps enhance their beautiful stripes.

Sex ratio

School

Keeping a mixed-sex school of at least eight individuals is highly recommended. Males are slightly more slender and exhibit brighter red markings on their fins. They will spar harmlessly, creating a fascinating and dynamic display in the tank.

Feeding frequency

Twice daily

They should be fed minuscule amounts two to three times daily. Their short digestive tracts process food rapidly, necessitating frequent meals. Offering sinking micro-foods ensures they get to eat in the mid-water regions.

Bioload

Low

The Dwarf Pencilfish is a tiny species that produces an exceptionally low bioload. They are perfect for nano tanks where water volume is limited. Even basic filtration easily manages the minuscule amount of waste they produce.

Flow

Strong

They strongly prefer calm, gentle water flow resembling their native stagnant swamps. Overpowering filter outputs will exhaust them and cause them to hide constantly. Sponge filters are the preferred method of filtration for this delicate species.

Jump risk

Yes

Like other pencilfish, they are easily spooked and may attempt to jump out. A fully secure lid is mandatory to prevent any accidental fatalities. Dense floating plants can also serve as a natural barrier and reduce anxiety.

Reproduction

Oviparous

Breeding them is challenging, requiring extremely soft, acidic water and low lighting. They deposit a small number of adhesive eggs among fine-leaved aquatic plants. The parents are notorious egg-eaters and must be separated from the eggs immediately.

Compatibility & tankmates

Community

They are completely peaceful but easily intimidated by larger or highly active fish. Excellent companions include dwarf rasboras, small peaceful tetras, and Caridina shrimp. They must be kept with other micro-species to thrive and feed comfortably.

Tank level

Top/Middle

They generally hover in the middle levels of the aquarium, rarely visiting the extreme top. They love to navigate through dense thickets of plants in the mid-water column. Providing ample mid-level foliage gives them the security they desperately need.