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Marine Addiditives

Support a stable, thriving marine or reef aquarium with our range of high-quality marine additives. Designed to maintain essential water parameters, these products help promote coral growth, fish health, and long-term system stability.

Our collection includes calcium, alkalinity, and magnesium supplements, trace elements, buffers, and biological additives that support reef chemistry and nutrient balance. Used as part of a regular maintenance routine, marine additives help replace consumed elements, stabilise parameters, and support healthy coral and invertebrate development.

Whether you’re maintaining a fish-only marine system or a fully stocked reef aquarium, our Marine Additives collection provides reliable, reef-safe solutions to keep your aquarium performing at its best.

55 products
Coral Essentials Coral Power
Coral Essentials Coral Power
From $29.95
The showroom

Come see it in the flesh

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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