Söll PhosLock

Phosphate-binding algae control

€ 229,99

(€ 23,00 / kg, Price shown includes 20% VAT. - Excludes delivery costs)

Content: 10 kg

Delivery by Wednesday, 06 December if you order today by 12:30.

Only 1 item in stock

Last Chance for Christmas Orders: Order at the latest by 19 December at 23:59 CET. Click here for more details

Features & Advantages

  • Combats heavy algae infestations
  • Lowers the phosphate content
  • 6-week slow release effect

Item no.: SOE-80494, Content: 10 kg, EAN: 4021028108987


Plants need phosphate for the formation of new cells. While a small amount is sufficient for aquatic plants, algae need a large amount of phosphate to thrive. Algae infestations in water are therefore usually associated with an increased phosphate content in the water.

PhosLock by Söll is the strongest phosphate binder in the world according to the manufacturer. The mineral formulation contains no heavy metals and is harmless to fish, plants and other pond dwellers when used correctly in the right amounts. PhosLock prevents nutrients in pond sludge from breaking down by binding the phosphate into a mineral that is not soluble in water.


Use PhosLock after each algae control application and every six weeks thereafter. If the pH value of the pond water is above 8.8, pre-treat the water first.

Sprinkle PhosLock across the entire pond. Do not touch or dissolve the product before use!

Filters and other systems can continue to operate as usual and fish can remain in the pond during the application of PhosLock.

Recommended dosage information:

Add 50 g PhosLock per 1000 L pond water.
If the phosphate content is over 1.0 mg/L per 1000 L pond water, add 75 g PhosLock per 1000 L pond water.
With the right dosage, you can bring down the phosphate level to less than 0.035 mg/L.

Brands (Manufacturers): Söll
Hazard and precautionary statements

Signal word: Danger

Precautionary statements:

  • P101 - If medical advice is needed, have product container or label at hand.
  • P102 - Keep out of reach of children.
  • P305+P351+P338 - IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P313 - Get medical advice/attention.
  • P261 - Avoid breathing dust/fume/gas/mist/vapours/spray.
  • P280 - Wear protective gloves/protective clothing/eye protection/face protection.
  • P301+P312 - IF SWALLOWED: Call a POISON CENTRE/doctor if you feel unwell.
  • P402 - Store in a dry place.
  • P501 - Dispose of contents/container according to proper regulations.

Hazard statements:

  • H318 - Causes serious eye damage.

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