• Clean dissolving salt crystals.
• Stable pH and alkalinity.
• Corals respond to natural food sources in the aquarium.
• Micro-gels help keep the water clear.
• Improves protein skimming.
• Helps maintain the natural biological balance.

Tropic Marin Bio Actif Sea Salt was developed by German chemist Hans Werner. Bio-Actif sea salts combines high-purity, clean-dissolving Tropic Marin salts with natural marine biopolymers. Natural reef water contains a variety of organic polymers called micro-gels. The transparent gels are invisible but play a major role in the marine environment. The gels protect and stabilize plank tonic colonies that float in the water. These nutrient-rich micron-sized gels are captured and consumed by SPS, LPS and other invertebrates.

The unique sea salt with bio-active marine agents.

Tropic Marin Bio Actif Sea Salt contains naturally occurring marine bio-polymers, which support the microbiological conditions in an aquarium and thus protect and enhance the growth of aquarium fauna. To this end, corals will exhibit their bright and vibrant colors in a natural way, while skeletal growth and/or the growth of stronger tissues are promoted. The reserves built up in this manner ensure that corals are more robust and less sensitive than otherwise. Fish also benefit from the bio-active substances by the formation of effective protection against damage to mucous membranes. Fish will exhibit their heightened sense of well-being by increased mating and reproduction activity. The polymers in Bio Actif help create these packets of nutritious live foods for your corals. Corals will open up and “reach out” to capture the micro-gels floating in the water. Over time you’ll see more vibrant colors and steady growth. These bio-active substances help reef fish by providing effective protection of delicate mucous membranes. Bio-Actif will also help stabilize a healthy biological balance in newly set-up reef aquariums, allowing you to start reef-building sooner. Making weekly 15% water changes will maintain a reef environment with a stable pH and alkalinity along with crystal clear water. You’ll see also notice that your protein skimmer will work more efficiently due to the bio-active substances contained in the salts.

Bio Actif Sea Salt Mix Features:

• Rapid coral growth, even in new reef tanks.
• Better Skimming action for the elimination of contaminants and suspended matter provides a permanent solution to cloudiness, allowing the reef aquarium to shine in full clarity in the most vibrant colors.
• Enhanced biological activity stabilizes water chemistry and keeps the water crystal clear.
• Can be used in new and established reef aquariums.
• Quick-dissolving formula leaves no residue.
• Comes in a reusable plastic bucket.

Freshness & Storage

Every batch we dispatch carries a minimum of 6 months’ remaining shelf life. Store this product in a cool, dry place away from direct sunlight, with the cap or inner foil closed tightly after each use.

Filter media and substrates carry no manufacturing or expiry date — their working life begins on first contact with water, not on the shelf.

Returns & Replacement

Returns are accepted within 7 days of delivery, provided the item is unused and in its original packaging. Manufacturer-sealed items cannot be returned once the seal is broken, and sale-priced items are not refundable.

If your item arrives defective or damaged, message us on WhatsApp with your order number — or email us, if you would rather — and we will replace it. Approved replacements are delivered within 3 to 5 business days. Transit damage is covered by insurance on every shipment. If tracking shows delivered but nothing reached you, tell us within 72 hours, which is the reporting window Indian couriers allow. Damage caused during installation or use is not covered; replacement spares for such cases are chargeable.

Full terms are on our Cancellation & Returns page.