| Sort by Popularity | Manufacturer | Product(s) | Model | Price+ | Buy Now |
| | | PRIMA LINE 01 ALKALI 500 ML 6/CS SO
Prima Line - Alkali 01
Prima Alkali is a concentrated, ionically balanced blend of alcaline compounds designed to restore and maintain inside the Reef Aquarium the correct “Alcaline Balance” to levels found in natural seawater.
It includes Calcium as well as Magnesium and Strontium, in an amounts proportionate to the average utilization ratios thus allowing to keep the correct le... This item is sold individually....more. | 731462 | $19.79 | |
| | ELOS | PRIMA LINE 04 COMBI MG 500ML 6/CS SO
Prima Line - Combi Magnesium 04
Prima Combi-mg is an innovative integrator formulated using highly bio-available organic magnesium, designed for a DOUBLE EFFECT:
To MAINTAIN the correct level of magnesium inside the tank.
To IMPROVE in the medium term the stability of this element inside the tank.
Based on an organic complex of Magnesium, it shows an hi... This item is sold individually....more. | 731465 | $19.79 | |
| | | ROWAKALK 500ML TUB
Rowa kalk - Kalkwasser
Kalkwasser translates from the German for limewater and is one of the oldest and most widely established methods of adding calcium to the reef aquarium as first introduced by Peter Wilkinson a Swiss aquarist.
Kalkwasser is a solution made by dissolving Calcium Hydroxide in water. The resultant fresh solution is alkaline with a pH of 12.4 and contains a re... ...more. | 728601 | $19.95 | |
| | | TRACE ELEMENT SUPPLEMENT 16 OZ
Trace Element Supplement
Highly advanced, carefully formulated proprietary product designed to supply marine and reef aquariums with essential elements for growth and health of captive corals and invertebrates. It is the most comprehensive blend of minor elements ever produced. Detailed research has shown that many minor elements are rapidly depleted by corals and fish. ReefPure... ...more. | 535290 | $20.17 | |
| | | NR PHOS 250G
NextReef Phos
Phosphate can limit coral growth in your reef tank and promotes nuisance algae in your fresh or saltwater aquarium. NR:Phos controls phosphate levels in your fresh or saltwater aquarium. Drinking water-quality media has consistent shape for better flow and phosphate removal. 250 g container treats up to 250-500 gallons of saltwater or 500 - 1000 gallons freshwater. 1... ...more. | 729209 | $20.29 | |
| | | ULTIMATE AMINOS 16 OZ
Ultimate Aminos Supplement
Provides essential Amino Acids for the growth of hard corals including SPS and LPS corals. Amino acids are used in the calcification process to build coral skeleton and are equally important as Calcium and Carbonates. In addition, Amino Acids serve as an energy source for corals and beneficial bacteria. ReefPure Ultimate Aminos Supplement is a comprehens... ...more. | 535005 | $20.55 | |
| | | CALXMAX 2PT CALCIUM/ALKALINITY 2-32 OZ
CalxMax 2 Part Calcium/Alkalinity Buffer
2-Part balanced ion supplement for maintaining Calcium and Alkalinity in all marine aquariums. Calxmax adds both Calcium and carbonate Alkalinity with major and minor elements by adding equal amounts of parts A and B, two separate solutions in two separate bottles packaged together. Calxmax will maintain Calcium and Alkalinity levels and ... ...more. | 535095 | $20.69 | |
| | | CONCENTRATED IODIDE SUPPLEMENT 32 OZ
Concentrated Iodide Supplement
Highly Concentrated liquid Iodide additive to maintain correct Iodide levels in the marine and reef aquarium. It is essential for the color and formation of a variety of structures, including the skeletons and shells of many corals, clams, algae and other reef organisms. Highest Quality Raw Materials including USP and ACS Reagent Grade. Produced with... ...more. | 535065 | $20.79 | |
| | | BALANCED ION MAGNESIUM SUPPLE 32 OZ
Balanced Ion Magnesium Supplement
Highly Concentrated liquid Magnesium additive to rapidly raise and maintain Magnesium levels in the marine and reef aquarium. It is unique, in that it is formulated to add several forms of Magnesium in a balanced ratio as not to disturb the ionic balance of the marine or reef aquarium. Magnesium is an essential element stabilizing Calcium and Alka... ...more. | 535085 | $21.08 | |
| | | CONCENTRATED CALCIUM SUPPLEMENT 32 OZ
Concentrated Calcium Supplement
Highly Concentrated liquid Calcium additive to rapidly raise Calcium levels in the marine and reef aquarium. It is critical for the growth and formation of a variety of structures, including the skeletons and shells of many corals, clams, algae and other reef organisms. Highest Quality Raw Materials including USP and ACS Reagent Grade. Produced wi... ...more. | 535045 | $21.08 | |
| | Seachem | REEF Advantage CALCIUM 1 KG ENGLISH 12/CS
Seachem Reef Advantage Calcium
A non-caustic (pH 8.3–8.6) optimized blend of ionic calcium designed to restore and maintain calcium to levels found in natural seawater. Calcium and carbonates are essential to all coral growth. If either becomes deficient, coral growth will cease, followed by a rapid decline in coral health. To prevent this you must provide calcium (Reef Advantage ... This item is sold individually. — FREE shipping when ordering $75 or more of qualifying items....more. | 729042 | $21.35 | |
| | Brightwell Aquatics | IODION 2L 4/CS
Iodion
Highly-concentrated, extended activity iodide solution.
Provides iodide, which is important to hermatypic corals and other invertebrates harboring zooxanthellae, macroalgae, and also to the health of fishes.
Stronger than most competing products.
The nature of iodide sources used makes Iodion more effective than ... This item is sold individually....more. | 731038 | $22.27 | |
| | Brightwell Aquatics | CALCION-P 400G 12/CS
Calcion-P
High-purity powdered calcium.
Increases the concentration of calcium in marine aquarium water to provide corals and other reef-building invertebrates with one of the most important elements required for growth.
Stronger and more economical than liquid calcium solutions; created for hobbyists maintaining multiple reef aquaria.
For... This item is sold individually....more. | 731166 | $25.21 | |
| | Brightwell Aquatics | ELEMENTAL 400G 12/CS
Elemental
Complete source of the elements and molecules directly used by corals, clams, and other reef-building invertebrates and organisms to create skeletal material and grow.
Provides calcium, strontium, magnesium, and potassium in approximately the same ratios in which they occur in aragonite, the mineral that is primarily secreted by reef-building marine organisms under nor... This item is sold individually....more. | 731176 | $25.21 | |
| | Brightwell Aquatics | MAGNESION-P 600G 12/CS
Magnesion-P
High-purity powdered magnesium blend.
Provides magnesium, which helps regulate the balance between calcium and carbonates in aquarium water, and is a component of aragonite, the mineral secreted by reef-building organisms to form skeletal material.
Stronger and more economical than liquid magnesium solutions; created for hobbyists maintaining mu... This item is sold individually....more. | 731196 | $25.21 | |
| | Brightwell Aquatics | MICROBACTER7 500ML 12/CS
MicroBacter7
Complex system of non-pathogenic aerobic and anaerobic microbes, as well as natural enzymes specifically formulate to establish biological filtration in new aquarium set-ups, and to enhance the rate of nitrification, denitrification, and organic waste degradation in marine and freshwater aquaria through complete nutrient remineralizatio... This item is sold individually....more. | 731120 | $26.03 | |
Aquaculture / Aquarium / Reef Tank / Marine 
