API Pond Products

API makes some of the most widely used pond water treatments, fish medications and test kits.

The range includes API Pond Algaefix, Accu Clear, Ecofix and Simply Clear for clearer water, Tap Water Conditioner and pH Down, Melafix and Pimafix, Aquarium Salt, and API test kits, including the Pond Care Master Test Kit.

API products are a staple for many pond keepers, from setting up a new pond to dealing with green water or unwell fish. Always follow the dose on the label. Shop water treatments, fish medications or test kits.

API Melafix 480ml
API Melafix 480ml

API Melafix 480ml

(0)

$41.95

API Pimafix 480ml
API Pimafix 480ml

API Pimafix 480ml

(0)

$41.95

API Melafix 120ml
API Melafix 120ml

API Melafix 120ml

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$22.95

API KH Test Kit
API KH Test Kit

API KH Test Kit

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$24.95

API Nitrate Test Kit
API Nitrate Test Kit

API Nitrate Test Kit

(0)

$32.95

API Aquarium Salt 1kg
API Aquarium Salt 1kg

API Aquarium Salt 1kg

(0)

$18.95

Related Blog Posts

River buttercup flowering at the edge of a garden pond in spring

The Best Pond Plants to Plant in Spring (Australian Guide)

on Oct 16 2026
Spring is the best time of year to plant up your pond. Here are our favourite oxygenators, marginals, water lilies and edibles to plant now, plus simple tips to get them off to a flying start.

How Do Pond Plants Get Sent?

Shipping

Yes, our pond plants are shippable! We ship every week day. Due to quarantine, we can't ship to WA or TAS.

Packed to Travel the Distance

Our plants are packed to stay in transit for weeks! Alternatively, you can click & collect from our retail outlet.

On Arrival

On arrival, your plants will be thirsty. Pop them into your pond as soon as possible..

Plant Guarantee

Shop with confidence — backed by our 14-Day Thriving Guarantee

Blog posts

River buttercup flowering at the edge of a garden pond in spring

The Best Pond Plants to Plant in Spring (Australian Guide)

by We Know Water Gardens on Oct 16 2026
Spring is the best time of year to plant up your pond. Here are our favourite oxygenators, marginals, water lilies and edibles to plant now, plus simple tips to get them off to a flying start.
Brown tree frog sitting beside a garden pond

How to Start a Frog Pond: A Step-by-Step Guide for Australian Gardens

by We Know Water Gardens on Oct 16 2026
Want frogs in your garden? Here's how to build a frog pond step by step, from choosing the spot and digging shallow edges to planting it up and keeping the water safe for tadpoles.
How to Fertilise Pond Plants: A Simple Guide to Healthy Growth

How to Fertilise Pond Plants: A Simple Guide to Healthy Growth

by We Know Water Gardens on Oct 12 2026
Want to know the easiest way to keep your pond plants healthy? Read on and learn about our simple 5 step feeding process!