Test Your Pond Water

Enter your test results and check what you’re seeing. We’ll explain what it means in plain words and show the products that fix it. Leave anything blank you didn’t test.

Test results

pHIdeal 7.0–8.5

KH / alkalinity (ppm)Ideal 100–300

GH / hardness (ppm)Ideal 100–250

Ammonia (ppm)Should be 0

Nitrite (ppm)Should be 0

Nitrate (ppm)Under 40

Phosphate (ppm)Under 0.5

Water temp (°F)For bacteria choice

What are you seeing?

Green water String algae Foam Cloudy water Muck / sludge Fish gasping at surface Fish flashing / rubbing White spots on fish Ulcers / sores / red streaks Fin rot / fuzzy growth Fish lethargic / not eating New pond New fish (quarantine) After heavy rain Topping off with city water Fountain, urn or bubbler, no fish

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More tools: Water volume calculator · Dosing guide · Water Feature Help Center