Algae Takeover in a 1500-Gallon Koi Pond: Free Guide to Restoring Balance

Algae Types

String algae (blanket weed) or green water (planktonic). Both signal nutrient/light imbalance.

Free Resource

Download "Basic Pond Maintenance" at pondmarket.com. It covers water testing, filtration, plant stocking, fish feeding, and seasonal care.

First Steps

• Test water (pH, ammonia, nitrite, nitrate, KH).
• Add floating plants for shade.
• Check filter capacity—clean if clogged.
• Reduce feeding.
• Consider barley straw or a UV clarifier.

Patience

A year-old pond is still maturing. Balance will come with consistent management.