Winter pond aeration depth: Avoiding thermocline destruction and supercooling
Position winter pond air diffusers on shallow shelves (12 to 18 inches) to maintain ice openings without destroying the warm 39°F bottom refuge layer.
Read guideKoi care collection
Koi Fish Habitat
Create the water conditions koi need to flourish.
Installing an underwater viewing window in a koi pond: Glass vs acrylic
Install an underwater viewing window in a koi pond. Compare cast acrylic with laminated toughened glass, calculate hydrostatic pressure, and seal concrete rebates.
Read guideHow to Safely Transport and Ship Koi Fish: Bagging, Oxygen, and Acclimation
Transporting koi without proper bagging and oxygen causes asphyxiation and trauma. Learn double-bagging techniques, pure oxygen charging, and box packing.
Read guideHow to Choose Quarantine Tank Size and Filtration for Koi Fish
Undersized quarantine tanks kill more new koi than diseases do. Learn how to calculate water volume, choose stock tanks, and cycle dedicated bio-filters.
Read guideBest Aquatic Plants for Koi Ponds That Koi Won’t Eat or Destroy
Koi are notorious underwater lawnmowers, but certain hardy marginals and protected water lilies thrive alongside them. Discover the best plant species.
Read guideDissolved Oxygen Levels in Koi Ponds: Saturation, Temperature, and Aeration
Oxygen depletion kills prized koi in hours. Understand the inverse relationship between water temperature and oxygen saturation, and how to maintain healthy levels.
Read guideHow to Protect Koi from Blue Herons, Raccoons, and Pond Predators
Great Blue Herons and raccoons devastate koi collections. Discover proven physical deterrents, perimeter lines, motion sensors, and structural safeguards.
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