Manju (6mm Pellet)

A low-protein, year-round koi food enriched with additional micronutrients.

KiGen Manju Premium Koi Food is a carefully balanced, low-protein koi food designed to support koi health, condition and colour retention throughout the year. It is particularly useful during winter and early spring, when koi metabolism slows and feeding opportunities become more limited.

Unlike traditional wheatgerm-style foods, Manju focuses on digestibility, resilience and micronutrient support, helping koi maintain condition without unnecessary metabolic strain.

Key Benefits

• Low-protein formula for easier digestion
• Suitable for year-round feeding when used correctly
• Especially useful during colder periods and early spring
• 50% increased vitamin and mineral premix
• Supports immunity, vitality and condition
• Helps maintain beni/red and shiroji/white colour quality

Why Choose KiGen Manju?

During colder water periods, koi require a more considered feeding approach. Manju reduces protein load while increasing micronutrient support, helping koi maintain health and condition when they are less active.

This makes it a strong option for koi keepers who want a thoughtful maintenance feed rather than a basic winter food.

Product Details

• Pellet Type: Floating
• Pellet Size: 6mm
• Available Sizes: 5kg and 10kg
• Protein 28%
• Best For: Maintenance feeding, colder periods, winter and early spring support
• Feeding Style: Conservative, condition-focused feeding

Feeding Advice

Feed sparingly in cooler temperatures and only when koi are actively feeding. Do not feed below 8°C. Always monitor water quality and reduce feeding if conditions become unstable.Feeding recommendation Manju koi feed
The feeding levels are intentionally conservative and prioritize
water quality.
Temperature-dependent feeding table
Water Daily feeding ratio
temperature (% body weight)

< 8°C 0% Do not feed
8–10°C 0.05–0.10% Limited digestion
10–12°C 0.10–0.15% Transition phase
12–14°C 0.15–0.20% Slow digestion
14–16°C 0.20–0.25% Low but stable
16–18°C 0.25–0.30% Upper limit below 18°C
18–20°C 0.30–0.45% Improved utilization
20–22°C 0.45–0.60% Increasing efficiency
22–24°C 0.60–0.75% Approaching optimum
24–26°C 0.75–0.90% Physiological optimum
26–28°C 0.60–0.80% Declining utilization
> 28°C < 0.60% Reduce feeding

A daily feeding rate above 0.3 % of body weight is only
recommended from 18 °C onwards. The practical upper feeding
limit is usually <0.8 % under most conditions.
Feeding should always be adapted to individual pond conditions.