Reef Additives
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Tropic Marin Bio-Magnesium
$17.58 – $41.99
35% off your first Repeat Delivery
Tropic Marin Pro-Coral Kalk
$24.31 was $29.99
35% off your first Repeat Delivery
Tropic Marin Pro-Coral K+ Elements
$44.99
35% off your first Repeat Delivery
Tropic Marin Reef Actif
(1)$34.99
35% off your first Repeat Delivery
Tropic Marin Alca-Balance
$20.75 was $34.99
35% off your first Repeat Delivery
Tropic Marin Bio-Calcium
$39.99
35% off your first Repeat Delivery
Tropic Marin Pro-Coral A- Elements
(2)$24.94 was $44.99
35% off your first Repeat Delivery
Instant Ocean Marine Aquarium Conditioner
(18)$10.99
Same Day Delivery Eligible
Seachem Reef Fusion 2
(14)$9.99
35% off your first Repeat Delivery
Same Day Delivery EligibleKent Marine Micro-Vert Invertebrate Food for Fine Filter Feeders
(14)$9.48 was $10.99
Same Day Delivery EligibleKent Marine Purple Tech
(25)$7.99 was $10.99
Same Day Delivery EligibleSeachem Reef Fusion 1
(31)$9.99
35% off your first Repeat Delivery
Same Day Delivery EligibleKent Marine Essential Elements
(11)$8.04 was $10.99
Same Day Delivery EligibleInstant Ocean Marine Reef Accelerator
(19)$6.28 was $10.99
Same Day Delivery EligibleHagen Fluval Sea Trace Elements
(6)$6.92 was $10.99
35% off your first Repeat Delivery
Same Day Delivery EligibleKent Marine Concentrated Liquid Calcium
(13)$9.99 was $10.99
Buy 2 Save 30% - Mix & Match
Same Day Delivery EligibleSeachem Reef Plus
(4)$9.99
35% off your first Repeat Delivery
Same Day Delivery EligibleKent Marine Strontium & Molybdenum
(3)$10.99
Kent Marine Superbuffer dKH Buffer and KH Builder
(13)$6.49 was $10.99
Same Day Delivery EligibleFluval Sea Iodine
(7)$4.37 was $10.99
35% off your first Repeat Delivery
Same Day Delivery EligibleKent Marine Coral-Vite
(9)$9.02 was $14.99
Same Day Delivery EligibleSeachem Reef Builder
(9)$9.99
35% off your first Repeat Delivery
Same Day Delivery EligibleKent Marine Nano Reef Parts A&B pH Treatments
(4)$11.99 was $15.99
Same Day Delivery EligibleFluval Sea Alkalinity
(10)$4.46 was $9.99
35% off your first Repeat Delivery
Same Day Delivery EligibleFluval Sea Trace 3 Ions
(5)$7.05 was $13.99
35% off your first Repeat Delivery
Same Day Delivery EligibleSeachem Reef Iodide
(4)$9.99
35% off your first Repeat Delivery
Same Day Delivery EligibleSeachem Reef Advantage Calcium
(10)$12.99
35% off your first Repeat Delivery
Same Day Delivery EligibleSeachem Reef Calcium
$7.03 was $9.99
35% off your first Repeat Delivery
Same Day Delivery EligibleSeachem Reef Pack: Fundamentals
(1)$19.99
35% off your first Repeat Delivery
Same Day Delivery EligibleTropic Marin Pro-Coral Mineral
$19.99
Seachem Reef Complete Conditioner
(4)$9.99
35% off your first Repeat Delivery
Same Day Delivery EligibleTropic Marin Bio-Strontium
$24.99
Tropic Marin Lipovit Vitamin Additive
(1)$24.71 was $44.99
Fluval Sea Magnesium
(6)$8.99 was $13.99
Fluval Sea Calcium
(3)$12.47 was $13.99
35% off your first Repeat Delivery
Same Day Delivery EligibleTropic Marin Bio-Calcium Actif
$19.99
35% off your first Repeat Delivery
Seachem Reef Buffer
(2)$9.99
35% off your first Repeat Delivery
Same Day Delivery Eligible
Coral Reef Additives
Just like taking vitamins for your health, your coral may benefit from additives and supplements. Because every aquarium is different from setup to aquatic life, there is no solution that fits every aquarist. For a fish only aquarium, completing a regular water change may suit your aquatic life's needs. A reef tank full of corals may require the addition of calcium, alkalinity, magnesium and other trace elements. These elements are the building blocks for many corals and invertebrates, as they grow these elements are absorbed reducing their levels within the aquarium.
Frequently Asked Questions
The building blocks for coral are alkalinity, calcium and magnesium. These elements are used by coral as they grow.
This can vary based on the amount of corals and invertebrates living in the aquarium. The best way to determine your reef tank's specific needs is to test for each of these elements.
A few differences between liquid and powder is with the liquid, you do not need to premix it with water before adding it to the aquarium. Powder supplement you tend to get more volume, for like products, for a cheaper cost.