Bekko Koi Care Guide: Simple Two-Colour Elegance in Your Pond
Sometimes the most elegant koi are the simplest in design. The Bekko family features a solid base colour adorned with scattered black sumi stepping-stone markings, creating a clean, understated beauty that complements flashier pond mates perfectly. This bekko koi care guide shares practical advice drawn from over 20 years of koi keeping experience at Gensou Aquascaping, 5 Everton Park, Singapore, where we have helped local hobbyists build balanced and visually stunning pond collections.
The Three Bekko Varieties
Bekko come in three colour forms. Shiro Bekko is the most common, featuring black sumi patches on a white body. Aka Bekko displays sumi on a red base, while Ki Bekko shows black on a yellow ground. Of the three, Shiro Bekko is the easiest to find and typically the most affordable, with pond-grade fish available from $40-120 SGD in Singapore. Ki Bekko is the rarest and often commands a premium among collectors. All three share identical care requirements, differing only in their base pigmentation.
Recognising Quality Patterns
Good Bekko display well-defined, lacquer-black sumi patches that sit cleanly on the base colour without bleeding or grey edges. The markings should appear on the body above the lateral line, ideally in a balanced arrangement from head to tail. A clean, unmarked head is preferred. Avoid fish with sumi that looks washed out or brownish, as this indicates weak pigment genetics. The base colour should be vivid and consistent across the entire body, whether white, red, or yellow.
Pond Size and Setup
Bekko grow to 50-70 cm in well-maintained ponds and need a minimum of 3,000 litres of water to thrive. Depth of at least 1.2 metres allows the fish to escape surface heat during Singapore’s hottest hours. Strong filtration is non-negotiable; a multi-stage system with settlement, mechanical, and biological chambers sized to turn over the full pond volume once per hour handles the bioload. Aeration through multiple air stones or a dedicated blower maintains dissolved oxygen above 6 ppm, critical when ambient temperatures push water to 29-31 degrees Celsius.
Water Parameters
Maintain pH between 7.0 and 7.5, ammonia and nitrite at zero, and nitrate below 30 ppm. Singapore’s PUB tap water is soft and slightly acidic, so adding crushed oyster shell or coral chips to your filter media provides gentle pH buffering. Perform 10-15 percent water changes weekly, always treating replacement water with a dechlorinator that neutralises chloramine. Stable parameters matter more than chasing perfect numbers; sudden swings in pH or temperature stress koi far more than slightly suboptimal but consistent values.
Feeding Bekko Koi
A balanced staple pellet forms the foundation of the diet. For Shiro Bekko, spirulina-enriched food supports sumi darkness without affecting the white skin. Aka Bekko benefit from colour-enhancing pellets containing astaxanthin, which intensifies the red base. Feed two to three times daily in amounts the fish finish within five minutes. In Singapore’s perpetual summer, koi metabolism runs high all year, so reduce portion sizes slightly during the warmest months to avoid overloading filtration. Treats like shelled prawns, blanched spinach, and orange segments once or twice a week add variety.
Sumi Stability in Tropical Conditions
Black pigment in koi is influenced by water temperature and genetics. Cooler water generally promotes darker sumi, which can be challenging in Singapore where pond temperatures rarely drop below 27 degrees Celsius. Select Bekko from breeders whose fish have demonstrated stable sumi in warm conditions. Providing shade over at least half the pond surface and maintaining pristine water quality are the most practical steps local keepers can take. Some hobbyists install chillers, but this is costly and usually reserved for show-quality fish.
Mixing Bekko With Other Varieties
Bekko are peaceful and sociable koi that mix well with any variety. Their simple pattern provides visual contrast alongside busier fish like Sanke or Showa. When stocking a mixed pond, aim for variety in both colour and pattern complexity. A Shiro Bekko swimming alongside a Kohaku and a Shusui creates a visually balanced collection without redundancy. Stock density should not exceed one koi per 500 litres as a general rule, adjusting downward for larger, mature fish.
Health and Longevity
Bekko have no variety-specific health vulnerabilities. Standard koi disease prevention applies: quarantine all new arrivals for two to three weeks, monitor for parasites like Ichthyophthirius and flukes, and treat bacterial infections promptly. Shiro Bekko’s white skin makes early detection of problems straightforward, as redness, lesions, or fin erosion stand out clearly. With proper care, Bekko can live 25-35 years, growing more beautiful as their sumi deepens and stabilises with maturity.
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