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      • Koi Viewing Windows
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      • Pond Netting
      • Predator Control
      • Fish Shelters & Caves
    • Cleaning & Maintenance
      • Care & Maintenance
      • Pond Vacuums
      • Seasonal Supplies
    • Winterization
      • Fall & Winter Prep
      • Pond Heaters & De-Icers
      • Floating Heaters
      • Submersible Heaters
      • Cold Water Bacteria
      • Spring Startup
    • Replacement Parts
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      • UV Replacement Bulbs
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      • Staple Food
      • Color-Enhancing Food
      • Growth Food
      • Winter & Wheat Germ
      • Spring & Fall Diet
      • Floating Koi Food
      • Sinking Koi Food
      • Koi Treats
      • Automatic Feeders
    • Fish Health
      • Koi Medications
      • Koi Parasite Treatments
      • Pond Salt
      • Quarantine Supplies
      • Koi Show Tanks
    • Water Treatments
      • All Water Treatments
      • Beneficial Bacteria
      • Algae Control
      • Water Conditioners
      • Sludge & Muck Removers
      • Pond Clarifiers
    • Natural & Testing
      • Pond Test Kits
      • Barley Straw
      • Pond Dye
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    • Butterfly Koi
    • Japanese Koi
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    • Tropical Water Lilies
    • Lotus
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      • Red Lotus
      • Pink Lotus
      • White Lotus
      • Yellow Lotus
      • Multi-Color Lotus
      • Multi-Petal & Double Lotus
      • Lotus Seeds
    • Floating Plants
    • Marginal / Shallow Water Plants
    • Oxygenating Plants
    • Canna Lilies
    • Water Iris
    • Taro Plants
    • Plant Supplies
  • Shop by Brand
    • Anjon
    • API Pond Care
    • Aqua Meds
    • Aqua Ultraviolet
    • AquaDyne
    • Aquascape
    • Atlantic Water Gardens
    • Blue Thumb
    • Carlisle
    • DreamPond
    • EasyPro
    • Evolution Aqua
    • Firestone PondGard
    • GC Tek
    • Helix Life Support
    • Hikari
    • Kodama Koi Farm
    • Koi Care Kennel
    • Koi Pharma
    • Laguna
    • Matala
    • MDM Pumps - Sequence & ValuFlo
    • Microbe-Lift
    • Mountain Tree
    • Nijikawa
    • KoiGuard
    • Nualgi Ponds
    • OASE
    • PerformancePro
    • PondMAX
    • Savio
    • Teton
    • Ultra Balance
    • SuperNatural
  • Learning Center
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      • Getting Started With Koi Ponds
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      • Customer Corner — Pond Builds
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Pond Filtration Basics

The 2-Inch Pipe Flow Rate Myth: Why “5,000 GPH Max” Is Wrong

flow rateBen CookeAug 11, 2026

Bottom Drain Pipe Sizing, Fittings & Plumbing Best Practices

bottom drainBen CookeApr 05, 2026

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