Aquascape Alkalinity Booster 4.08kg

Looking for a bulk solution to raise KH and stabilise pH in your pond? The Aquascape Alkalinity Booster 4.08kg is perfect for larger ponds or regular treatments, helping you maintain a healthy and stable aquatic environment with ease.

This large-format, lab-tested treatment increases carbonate hardness (KH) and overall alkalinity, supporting beneficial bacteria and reducing the risk of harmful pH swings. It also includes a phosphate binder to help minimise algae growth and keep your pond looking clean all year round.

⚙️ Features

  • Bulk 4.08kg size – ideal for bigger ponds or regular use
  • Boosts KH (carbonate hardness) and alkalinity for better pH stability
  • Pharmaceutical grade and completely dissolvable in pond water
  • Built-in phosphate binder helps prevent algae problems
  • Phosphate and ammonia free

Why Alkalinity and KH Are Important

KH acts as a buffer for pH, helping to prevent sudden drops that can shock your fish and disrupt your pond’s biological filter. Low alkalinity is one of the most common water quality problems in Australian ponds – and one of the easiest to fix.

Need a Water Test Kit?

We recommend testing your pond water before and after dosing. You can find test kits for KH, pH, ammonia, and more here: Pond Water Test Kits

We stock a wide range of pond water treatments — including pH adjusters, dechlorinators, beneficial bacteria and more. Browse them here.

Not sure how much to dose or whether this is the right product? Get in touch — we’re here to help.