UltraClear Cold Water Complete (Winter Blend) – Pond Bacteria
- Cold-Water Optimized Formula: Proprietary blend of beneficial bacteria formulated to remain active in water temperatures as low as 35°F — when many pond products stop working.
- Reduces Sludge & Organic Build-Up: Liquid formula helps minimize leaves, muck, fish waste, and other debris that collect through fall and winter.
- Prepares Your Pond for Spring: Sustains biological activity during cold months, helping reduce buildup for an easier spring startup.
- Safe and Natural: 100% biological and eco-friendly. Contains no harsh chemicals or hidden additives. Safe for fish, aquatic plants, pets, wildlife, and family enjoyment.
- Supports Water Quality: Helps reduce unpleasant odors and contributes to a healthier, more balanced pond environment.
- Simple Liquid Application: Just pour directly into your pond for quick, even coverage — ideal for larger ponds and ongoing seasonal care.
Description
Keep biological pond care going through the cold-water season.
UltraClear Cold Water Complete, listed here as Winter Blend, combines nitrifying and sludge-digesting beneficial bacteria for pond water from 35°F to 55°F. The liquid formula supports clarity and the breakdown of organic waste as temperatures fall.
Cold-season support for your pond
- Active in cooler water: formulated for 35°F–55°F conditions.
- Breaks down organic debris: helps digest fallen leaves, fish waste, excess food and decaying vegetation.
- Supports biological balance: nitrifying bacteria help biologically convert ammonia.
- Easy liquid application: shake, measure and pour directly according to the label.
- Made in the USA: safe for koi, goldfish, plants and wildlife when used as directed.
Weekly cold-water care
Begin when pond water falls below 55°F. Use 1 fl oz per 1,000 gallons weekly, following your bottle's dosing chart. Examples:
- 500 gallons: 0.5 fl oz
- 1,000 gallons: 1 fl oz
- 10,000 gallons: 10 fl oz
For problem ponds, use the recommended dose 2–3 times per week until conditions improve, then weekly maintenance. Follow the current package directions for your pond.
Choose a bottle
Available in 32 fl oz and 1 gallon sizes. A 32 fl oz bottle supplies 32 one-ounce treatments; a gallon supplies 128. Larger ponds and more frequent treatments use additional product.
Common questions
What happens during freezing weather?
The bacteria can survive beneath surface ice. Activity slows or becomes dormant during extended cold, then resumes as water temperatures and pond conditions improve.
When should I change my seasonal routine?
Use during fall, winter and early spring while water is in the cold-temperature range. Above 55°F, switch to a suitable warm-season beneficial-bacteria product and follow its directions.
Is this the same format as Cold Water Muck Remover?
No. This is a liquid treatment. Cold Water Muck & Sludge Remover uses sinking pellets for bottom-focused treatment. Each has its own dosing directions.
Keep biological pond care going through the cold-water season.
UltraClear Cold Water Complete, listed here as Winter Blend, combines nitrifying and sludge-digesting beneficial bacteria for pond water from 35°F to 55°F. The liquid formula supports clarity and the breakdown of organic waste as temperatures fall.
Cold-season support for your pond
- Active in cooler water: formulated for 35°F–55°F conditions.
- Breaks down organic debris: helps digest fallen leaves, fish waste, excess food and decaying vegetation.
- Supports biological balance: nitrifying bacteria help biologically convert ammonia.
- Easy liquid application: shake, measure and pour directly according to the label.
- Made in the USA: safe for koi, goldfish, plants and wildlife when used as directed.
Weekly cold-water care
Begin when pond water falls below 55°F. Use 1 fl oz per 1,000 gallons weekly, following your bottle's dosing chart. Examples:
- 500 gallons: 0.5 fl oz
- 1,000 gallons: 1 fl oz
- 10,000 gallons: 10 fl oz
For problem ponds, use the recommended dose 2–3 times per week until conditions improve, then weekly maintenance. Follow the current package directions for your pond.
Choose a bottle
Available in 32 fl oz and 1 gallon sizes. A 32 fl oz bottle supplies 32 one-ounce treatments; a gallon supplies 128. Larger ponds and more frequent treatments use additional product.
Common questions
What happens during freezing weather?
The bacteria can survive beneath surface ice. Activity slows or becomes dormant during extended cold, then resumes as water temperatures and pond conditions improve.
When should I change my seasonal routine?
Use during fall, winter and early spring while water is in the cold-temperature range. Above 55°F, switch to a suitable warm-season beneficial-bacteria product and follow its directions.
Is this the same format as Cold Water Muck Remover?
No. This is a liquid treatment. Cold Water Muck & Sludge Remover uses sinking pellets for bottom-focused treatment. Each has its own dosing directions.