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Pond One Algae Block – Slow Release Pond Algae Treatment

An easy, no-fuss algae block that slowly dissolves in your pond to keep algae levels under control

Pond One Algae Block is a simple slow-release treatment for controlling algae growth in ponds and water features. Just drop a section into your pond and let it do the work. Safe for ornamental fish and aquatic plants when used as directed, it is one of the easiest ways to keep your pond water clean and clear with minimal effort.

Key Benefits:

  • Slow Release Formula: Dissolves gradually to provide ongoing algae control without repeat daily dosing.
  • Easy to Use: No measuring or mixing, just drop the block into the pond.
  • Safe for Fish and Plants: Suitable for use in ornamental ponds with fish and aquatic plants when used as directed.
  • Reduces Maintenance: Helps keep algae levels down between cleans and water changes.

Directions for Use:

  • Dosing: Use one section per 200 L of pond water. One complete block treats up to 800 L.
  • Application: Place the block directly into the pond, ideally near a pump or aeration device for best circulation.
  • Before Treating: Remove heavy algae growth manually before use to prevent oxygen depletion as algae dies off.
  • Aeration: Keep the pond aerated during and after treatment.
  • Filter: Remove activated carbon from your filter during treatment as it may reduce effectiveness.

Important Notes:

  • For use in ornamental ponds and water features only.
  • Safe for ornamental fish and plants when used as directed.
  • Do not overdose. Measure pond volume before treating.

We stock a wide range of pond treatments and water care products — Not sure what your pond needs? Contact The Fish Works for free expert advice anytime. Also check out API Pond AlgaeFix for a liquid algae treatment option.

Weight 1 kg