Aquarium Water Treatments, Conditioners & Test Kits

Shop aquarium water treatments, conditioners and test kits at The Tech Den Australia. Explore freshwater and marine water care products, from tap-water dechlorinators and aquarium bacteria to mineral buffers, filter media, reef supplements and testing supplies.

Explore aquarium water care

  • Tap-water conditioners: compare Seachem Prime and Safe, API Tap Water Conditioner, Continuum Fraction and selected Easy-Life formulas.
  • Start-up and maintenance bacteria: browse Seachem Stability and Pristine, API Quick Start, Dr Tims and other products for specific freshwater or marine applications.
  • Water testing: liquid test kits, digital checkers, test strips, reagents and calibration solutions from API, Hanna, Salifert and other brands.
  • Minerals and buffers: aquarium salts, GH and KH conditioners, pH adjustment products and species-focused mineral formulas.
  • Filter media: biological media, activated carbon, adsorbent resins, filter wool, media bags and filter socks.
  • Marine and reef care: salt mixes, calcium, alkalinity and magnesium supplements, nutrient-management products and selected coral nutrition.
  • Specialised treatments: water clarifiers, algae-management products, fish treatments and coral dips, each with its own intended use and precautions.

Choose products for your setup

Compare your aquarium type, water test results, livestock and the purpose of each formula before choosing a product. Dechlorinators, mineral conditioning salts, bacterial additives and fish medications perform different roles. Freshwater, marine, reef and pond products are not automatically interchangeable.

Check that test kits and replacement reagents measure the required parameter and match the exact instrument model. General hardness (GH), carbonate hardness or alkalinity (KH), pH and salinity are different measurements; choose conditioners and supplements according to the parameters you need to manage.

Use water treatments as directed

Follow the current label for dosage, treatment duration, mixing, filtration instructions and livestock restrictions. Check compatibility with plants, shrimp, snails, corals and other inhabitants rather than assuming every treatment is suitable for every tank. Coral dips have a separate application from products dosed into aquarium water.

Cloudy water can have different causes, so assess water parameters and maintenance needs rather than treating a clarifier as a universal cure. The range also includes cleaning tools and filtration accessories to support routine aquarium care.

Check individual listings for pack size, current availability, special-order notes and pickup restrictions. Selected large salt packs and other heavy or bulky items carry additional delivery costs.

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