Coffee Bean Tetra Care Guide: Tiny With a Bold Spot
This coffee bean tetra care guide covers a charming nano fish that deserves far more attention in the Singapore aquascaping scene. At Gensou Aquascaping, 5 Everton Park, we find the coffee bean tetra to be an excellent choice for planted tanks, offering subtle beauty and lively schooling behaviour in a compact package.
Species Overview and Origin
The coffee bean tetra (Hyphessobrycon takasei) originates from the lower Amazon basin in Brazil, where it inhabits slow-moving streams and flooded forest margins. Its common name comes from the prominent dark spot on its flank, shaped remarkably like a coffee bean. Adults reach only 3 to 4 centimetres, making them well suited to smaller aquariums. The body is translucent with a warm golden hue, and the bold marking provides a striking contrast that stands out even in densely planted layouts.
Tank Size and Setup
A group of eight to twelve coffee bean tetras can thrive in a tank as small as 60 litres, though 80 to 100 litres offers more swimming space and stability. A planted aquascape with a mix of stem plants, carpeting species and floating vegetation replicates their shaded natural habitat. Use a dark substrate to enhance the fish’s colouration and create a more natural appearance. Driftwood and leaf litter further enrich the environment and release beneficial tannins. Moderate lighting suits both the fish and a broad range of aquatic plants, making this species an ideal resident for typical planted tanks in Singapore.
Water Parameters
Coffee bean tetras prefer soft, slightly acidic water with a pH of 5.5 to 7.0, a temperature of 24 to 28 degrees Celsius and hardness of 2 to 12 dGH. Singapore’s treated tap water generally falls within acceptable hardness, though lowering pH with catappa leaves or driftwood can encourage more natural behaviour and colouration. Maintain ammonia and nitrite at zero and nitrate below 20 parts per million. A gentle sponge filter or small canister filter provides adequate flow without creating excessive current, which these small fish prefer to avoid.
Diet and Feeding
In the wild, coffee bean tetras feed on micro-invertebrates, insect larvae and organic detritus. In the aquarium, they accept a wide range of foods. A high-quality micro pellet or crushed flake serves as a reliable staple. Supplement with frozen daphnia, cyclops and baby brine shrimp to boost colour and condition. Feed small amounts twice daily, ensuring food particles are small enough for their diminutive mouths. Overfeeding in a nano setup quickly degrades water quality, so err on the side of caution and remove uneaten food promptly.
Schooling Behaviour
Coffee bean tetras are a true schooling species and should never be kept in groups smaller than six. In larger groups of ten or more, they display tighter schooling formations and more confident behaviour, spending more time in open water rather than hiding among plants. Males may engage in brief sparring displays, flaring their fins and circling one another, but these interactions are harmless. A well-sized school adds constant movement and visual interest to a planted aquascape, making them a popular choice among aquascapers at Gensou Aquascaping.
Compatible Tankmates
Their peaceful disposition makes coffee bean tetras compatible with a wide array of nano and small community fish. Suitable tankmates include other small tetras, rasboras, Corydoras catfish, otocinclus and dwarf shrimp such as cherry shrimp or Amano shrimp. Avoid housing them with large or aggressive species that may view them as prey. Bettas can work in a sufficiently planted tank, but monitor interactions closely, as individual betta temperaments vary. Keeping tankmates within a similar size range ensures a harmonious community.
Breeding in the Home Aquarium
Coffee bean tetras are egg scatterers that can be bred in a dedicated tank with fine-leaved plants or spawning mops. Condition a pair with protein-rich foods for one to two weeks before transferring them to the breeding setup. Soft, acidic water with a pH around 6.0 and a temperature of 26 degrees Celsius encourages spawning. The female scatters adhesive eggs among plant leaves, and both parents should be removed afterwards to prevent egg predation. Eggs hatch within 24 to 36 hours, and fry become free-swimming in three to four days. Feed fry infusoria initially, graduating to baby brine shrimp as they grow.
Health and Maintenance
Coffee bean tetras are hardy for their size but remain vulnerable to sudden parameter swings. Acclimatise new arrivals slowly using the drip method over 30 to 45 minutes. Common ailments include ich and fin rot, both typically triggered by stress or poor water quality. A consistent maintenance routine of weekly 20 to 25 per cent water changes, filter cleaning and careful feeding keeps these fish healthy and vibrant. For stocking advice and healthy specimens suited to Singapore’s water, visit Gensou Aquascaping at 5 Everton Park.
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