Pond Water & Care
Master pond water: the nitrogen cycle, cycling a new pond, algae and green water, pH, KH and GH, beneficial bacteria, water changes, and seasonal care for koi and goldfish.
The Pond Nitrogen Cycle
How beneficial bacteria keep pond water safe.
Read more →How to Cycle a New Pond
Establish your filter before adding koi.
Read more →Pond Algae Control
Why algae appears and how to get the upper hand.
Read more →Green Pond Water
Clear a pea-soup green water bloom for good.
Read more →String Algae
Tackle stubborn blanketweed and string algae.
Read more →Pond pH
The pH koi need and why stability matters most.
Read more →Pond KH and GH
Carbonate hardness, buffering, and pH crashes.
Read more →Beneficial Bacteria in Ponds
The invisible workforce in your filter.
Read more →New Pond Syndrome
Why new ponds crash and how to avoid it.
Read more →Pond Water Changes
How and when to change pond water safely.
Read more →Overwintering Koi
Get your koi and pond safely through winter.
Read more →Summer Pond Care
Heat, oxygen, and algae through the hot months.
Read more →The Koi Pond Care Planner
11 printable worksheets to plan your build, stock your pond, track water tests, and stay on a seasonal routine.
Get the Planner for $39