Bala Shark Complete Care Guide: Silver Apollo Schooler
Bala sharks hit 30 cm. They are nervous shoalers that jump when startled. A lone bala in a 120 cm tank is a fish on death row. This bala shark complete care guide from Gensou Aquascaping at 5 Everton Park sets out the non-negotiables — minimum tank length, shoal count, tight-fitting lid, water parameters and diet — so the juveniles sold at Singapore LFS actually reach adulthood in your care rather than wasting in a 60 cm community tank. Big-tank commitment is the price of admission.
Species Snapshot
Balantiocheilos melanopterus, the bala or tricolor shark, is a Southeast Asian cyprinid native to Sumatra, Borneo and the Malay Peninsula. Wild populations are critically endangered; nearly all trade stock is farm-bred. Adults reach 30-35 cm in adequate space, average 25 cm in most home tanks. They live 8-10 years when housed properly. The silver body, black-edged fins and large eye make them striking centrepieces.
Tank Size — The Hard Floor
A shoal of five balas needs 180 cm (6 ft) minimum tank length at 500-600 litres. Shorter tanks stunt growth and amplify stress until they jump or stop feeding. Height matters less than length — these are swimmers, not territorial lurkers. Singapore HDB floor-loading rules typically support 500-litre tanks on ground floor or reinforced locations only. Verify structural suitability before buying. The aquarium tanks and cabinets category stocks appropriate footprints.
Shoaling Requirement
Balas are obligate shoalers. A group of five is minimum; seven to ten is better. Singletons stress, hide, refuse food and jump. Pairs fight for dominance with no third party to dilute tension. The visual impact of a proper shoal cruising in formation is the reason people keep this species — do not dilute it by under-stocking. Adding juveniles together is smoother than introducing staggered individuals.
Tight-Fitting Lid Is Non-Negotiable
Balas are champion jumpers, especially when startled by lights-on, sudden movement or net-chasing. Open-top rimless tanks kill them. Use a glass lid with minimal gap or a full acrylic cover. Dim lights ten minutes before room lights activate to avoid startling them. Cover the tank fully during water changes — they will launch from a gap narrower than their body diameter.
Water Parameters
Bala sharks prefer pH 6.5-7.5, GH 5-15, KH 4-8, 22-28 °C. Singapore PUB tap at GH 2-4 is on the soft side; they tolerate it but some keepers remineralise to mid-range for stability. Heavy biofilter capacity is essential — an adult shoal produces serious waste. Canister filter with 5-8x tank-volume turnover per hour minimum. Ammonia and nitrite zero, nitrate under 20 ppm via weekly 30 percent water changes.
Diet and Feeding
Omnivorous with a slight carnivore lean. Rotate quality sinking pellets, tropical flakes, frozen bloodworm, frozen brine shrimp, blanched vegetables and occasional live foods. Feed twice daily in moderate amounts; adults can strip a feeding ring in seconds. Vary protein sources to prevent dietary monotony. The fish food and feeding category carries appropriate pellet and frozen selections.
Tank Mates
Peaceful with anything that does not fit in their mouth. Classic mates: tinfoil barbs, silver dollars, rainbow fish, clown loaches, angelfish, larger gouramis, Congo tetras, medium-sized peaceful cichlids like severums. Avoid small nano fish (snacks), aggressive cichlids (bully the skittish balas) and long-finned slow fish. Clown loaches make excellent companions sharing similar size and tolerance.
Hardscape and Plants
Open swimming space dominates over dense scape. Large driftwood pieces low in the tank, a few stone clusters, and Anubias or Java fern pinned to hardscape work. Avoid delicate carpet plants — balas stir substrate during feeding. Tall background plants like Vallisneria create a visual break without consuming swim volume. Moderate flow suits their stream-origin background.
Growth Rate and Lifespan
Juveniles at 6 cm reach 15 cm in the first year given good food and stable water. Growth slows after year two. Final size in home tanks typically 22-28 cm; farm genetics plus tank volume determines upper limit. Lifespan stretches to 10 years in well-maintained setups. The species rewards long-term commitment — expect a decade-plus obligation when buying.
Singapore Pricing and Sourcing
C328 Clementi and Qian Hu stock 6-8 cm juveniles regularly at SGD 8-15 each. Larger 12-15 cm specimens SGD 25-40 but rarely available. Seasonal Iwarna imports sometimes bring in tank-bred stock at SGD 12-20. Buy five or more simultaneously from the same tank to ensure shoal integrity. The typical 20-litre starter tank sold alongside them is a total mismatch — walk out if a shop recommends it.
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Still Have Questions About Your Tank?
Drop by Gensou Aquascaping — most walk-in questions get answered in under 10 minutes by someone who has set up hundreds of tanks.
5 Everton Park #01-34B, Singapore 080005 · Open daily 11am – 8pm
