Halfmoon Plakat Betta (HMPK Aurora)

Acquire the magnificent HMPK Aurora, an aggressive, high-pH specialist betta with iridescent scales, perfect for the advanced aquarist seeking a formidable centrepiece.

• Exceptional Water Chemistry (The High-pH Specialist): This is where the HMPK Aurora differs drastically from standard bettas. This variant has been line-bred for optimal health in alkaline conditions, a critical factor for success.
  • Optimal pH Range: Maintain a pH between 7.6 and 8.4. Unlike common splendens that require acidic peat-infused water, the Aurora thrives in hard, alkaline water mimicking limestone-rich biotopes. Use crushed coral or aragonite substrate to naturally buffer the water to these levels.
  • General Hardness (GH): Aim for a GH of 10–15 dH. This elevated mineral content is not just tolerated but essential for their osmotic balance and vivid scale development.
  • Temperature Stability: Keep water consistently between 26°C and 28°C (79°F - 82°F). Use a high-quality adjustable heater. Sudden temperature drops can suppress their immune system, making them susceptible to disease, especially since they are high-energy fish.
  • Filtration & Flow: These fish are powerful swimmers for their size. A sponge filter or a hang-on-back filter with a gentle flow is ideal. Ensure the water is crystal clear with zero ammonia (0 ppm) and zero nitrite (0 ppm). Nitrates should be kept below 20 ppm via weekly water changes of 25-30%. Because of their higher bioload for their size, pristine water is non-negotiable.
• Aggressive Temperament & Impossible Tank Mates: Labelled as aggressive, the HMPK Aurora requires a housing strategy that prioritizes safety. This is not a community fish; it is a solitary gladiator.
  • Absolute Solitary Housing (Recommended): The safest and most spectacular display is a dedicated specimen tank. A 20-litre (5-gallon) aquarium is the minimum. This allows you to fully appreciate its flowing fins and aggressive posturing without risk to other livestock.
  • Critical Warning on Dither Fish: Do not house with small tetras, rasboras, or guppies. They will be relentlessly chased, fin-nipped, and likely killed. The Aurora views anything with flowing fins as a rival, not a friend.
  • Potential "High-Risk" Invertebrates: Larger, fast-moving shrimp like Amano shrimp (5cm+) may survive initially, but they will be hunted. Snails with longer tentacles (like trumpet snails) may be harassed. If attempting cohabitation, provide dense planting with moss and cholla wood to create escape routes.
  • Visual Barriers & Space: If housed in a divided tank, ensure dividers are opaque. Seeing another male will cause constant stress and excessive flaring, leading to exhaustion and fin rot.
• Specialized Feeding Habits (Carnivorous Powerhouse): As an aggressive and active variant, the Aurora has a high metabolic rate and requires a protein-rich diet to maintain its muscular build and lustrous colour.
  • Staple Diet: Provide high-quality betta pellets (containing 40-45% protein) as a daily staple. Feed only 2-3 pellets once or twice a day. They are gluttons and will gorge if given the chance; overfeeding leads to bloating and dropsy.
  • Live & Frozen Foods (Essential for Conditioning): Supplement 2-3 times per week with live foods such as brine shrimp (enriched), wingless fruit flies, or mosquito larvae. Frozen bloodworms and daphnia are excellent alternatives. These high-value treats trigger their natural hunting aggression, keeping them active and reducing stress levels.
  • Digestive Health: Because of the high mineral content in their water, ensure you do not overfeed. Fasting them for one day per week is highly recommended to clean their digestive tract and prevent constipation.
• Comprehensive Care & Maintenance Guidelines: This HMPK Aurora is a robust fish when kept correctly, but specific care routines are vital for long-term success, particularly given its high-pH requirements.
  • Aquascaping for an Aggressive Fish: Provide heavy planting (Java fern, Anubias, Vallisneria) which they utilise for sleeping and hiding. Floating plants like Salvinia or Frogbit help diffuse light and make them feel secure. Avoid sharp-edged decor that can tear their delicate fins.
  • Health Monitoring: Their aggressive nature often leads to minor fin tears if they flare at their reflection. Maintain pristine water quality to prevent secondary bacterial infections like fin rot. Be sure to test for high pH stability; sudden drops (<7.0) will cause osmotic shock.
  • Water Change Protocol: Use a gravel vacuum weekly to remove uneaten food and waste. Replace the removed water with pre-treated water that has been matched to the tank's current pH and temperature. Never add water of a drastically different pH, as this weakens their slime coat and immunity.
  • Ideal Tank Size: While 20 litres is acceptable, a 30-litre (8-gallon) tank provides a superior environment, offering more territory to patrol, which helps manage their territorial aggression and keeps them mentally stimulated.