Serenity Pond Algae Blocks are green water destoyer blocks perfect for controlling most types of algae in fish ponds and freshwater aquariums. Pond blocks kill algae and also prevent it from growing again. A substance in the pond algae block attaches itself to any floating dead algae which causes it to sink to the bottom of the pond. The dead algae can then be siphoned out of the pond or left to break down by natural bacteria. It is best to use pond blocks with a running pump for better water circulation. Treats up to 800L of water (or break into 4 small blocks to treat 200L at a time.)

  • Crystal clear pond water
  • Frog and turtle friendly
  • Kills algae and prevents it from growing again
  • Works for up to 2 months

(SKU: 129557)

SKU 129557
Barcode # 9343740000680
Brand Serenity
Warranty Length Limited Warranty
Warranty Conditions Limited Warranty
Shipping Weight 0.10 kg
Type Pond Treatments

Limited Warranty - This product has been stored in a controlled environment to ensure you will receive the best quality product possible. Due to this reason this product is sold on a strict no refund or return policy, unless it falls under a warranty claim.

This calculator will show you the delivery charges for this product only.

Free Shipping Eligibility

  • Aqua Gardening offers free shipping on most orders above $100 that are not bulky and are sent to metro areas.  Once you place all the items you wish to buy in the cart, the combined shipping price will be shown in the cart, including Free Shipping if you are eligible. For full details please see our free shipping eligibility here.

Delivery Information

  • Back Order products - These are products we usually carry in stock but are temporary out of stock. These products will be back in stock within a few days. We can send you an email notification when they are back in stock if you click on the “Notify me when back in stock” link. See the full details here.
  • Special Order products - These are products that we do not regularly stock. These products will be ordered specially for you, or dispatched directly to you from our supplier. See the full details here.
  • Online Only products - These are products that are in stock in a different warehouse and can’t be picked up with the Click & Collect option. If you wish to collect these products from our Brisbane showroom, you can enter our address as the delivery address. Shipping costs may apply. See the full details here.
  • Click & Collect Only products - These products can only be collected from our Brisbane showroom as we can not ship them. If you place any of these products in your cart, you will only see the Click & Collect option at the checkout.
  • Fast Dispatch products - These are products that we have in stock in our Brisbane showroom, and they are available for immediate Click & Collect or Shipping. Keep in mind that if you have a product which is not listed as a Fast Dispatch product in your cart, there might be a delay on your order. See the full details here.