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Freshwater Additives

Support a healthy, stable freshwater aquarium with our range of high-quality freshwater additives. Designed to improve water quality and promote fish and plant health, these products help maintain optimal conditions in both community and planted aquariums.

Our collection includes water conditioners, beneficial bacteria, liquid fertilisers, mineral supplements, and treatments that assist with cycling, nutrient balance, and stress reduction. When used correctly, freshwater additives help stabilise parameters, enhance plant growth, and create a more natural, thriving environment for aquatic life.

Whether you’re establishing a new aquarium, fine-tuning a planted tank, or maintaining long-term water stability, our Freshwater Additives collection provides reliable, aquarium-safe solutions to keep your system performing at its best.

68 products
LCA NPK - Apex AquaticLCA NPK
LCA NPK
From $24.95
Sale
API Aqua Essential - Apex AquaticAPI Aqua Essential
API Aqua Essential
From $9.95 $17.00
Sale
API Ammo Lock - Apex AquaticAPI Ammo Lock
API Ammo Lock
From $9.95 $17.03
Sale
API Ph Down - Apex AquaticAPI Ph Down
API Ph Down
From $15.50 $34.00
Sale
API Ph Up - Apex AquaticAPI Ph Up
API Ph Up
From $11.95 $33.00
LCA Potassium - Apex AquaticLCA Potassium
LCA Potassium
From $25.00
Sale
Aquario Neo Plant Tabs - Apex AquaticAquario Neo Plant Tabs
Aquario Neo Plant Tabs
From $17.50 $20.00
LCA Iron - Apex AquaticLCA Iron
LCA Iron
From $24.95
The showroom

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Rows of marine and freshwater display tanks, live coral, and a team who actually keep reef and planted systems themselves. Pop in - the advice is free and the tanks are worth the trip.

  • 57-61 Alexandra Parade, Collingwood VIC 3066
  • 1300 880 373
  • Open 7 days a week
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