Low Alkalinity in Pond: Baking Soda or pH Up?

"Low Alkaline Level" — You Mean Low pH (Acidic)

Alkaline = pH >7. You likely have low pH (acidic). Goldfish need 7.0–8.5.

Raise pH Safely

• Baking soda (sodium bicarbonate) — buffers to ~8.3. Start with 1 cup/1000 gal, retest 24 hrs.
• Commercial "pH Up" (sodium hydroxide) — stronger, precise dosing.

Ich in Ponds?

Rare. Male goldfish get breeding tubercles (white dots on gills/fins) — normal. Confirm before treating.

Test pH, hardness, alkalinity. Adjust slowly.