Hydra International - Natural Aquatic Treatments, Cleaning & Protecting the Environment

Biological Treatment that rapidly removes blanket weed, string algae and slime. Ideal for Koi and fish ponds, lakes, water traps, natural pools and irrigation systems.

Pack 4 x 55 lb carton

• Easy to use granules which work on contact to eliminate slime, blanket weed and string algae.
• Same eco friendly bacteria action as barley straw but with rapid results.
• No waiting weeks for results with no messy, smelly straw to remove.
• Hydra Quartz starves the blanket weed by chelating and absorbing nitrates and phosphates which are essential for blanket weed growth; its bacteria and enzymes control and prevent blanket weed for extended periods.
• Does not affect biological filters or pumps.
• Harmless to all fish, birds, reptiles, invertebrates, humans, mammals, animals and water plants.
• Easy to use simply sprinkle or broadcast onto affected areas.
• UV lights can be left on during treatment.

How to Use

The product should be applied as soon as blanket weed appears in your pond. If there are fish in your pond, we recommend treating the pond in halves so that the fish have somewhere to swim to when the blanket weed is dying.

You should start seeing the effects of the treatment rapidly as it starves the blanket weed of the essential nutrients it needs to grow.

Unfortunately Blanket Weed is notoriously difficult to prevent from returning, as it can be brought in to your pond by birds, other aquatic plants and by the wind. Therefore if you want to keep your pond free from blanket weed you must re-apply the Quartz as soon as you see it return.