| Sort by Popularity | Manufacturer | Product(s) | Model | Price+ | Buy Now |
| | Brightwell Aquatics | PHOSPHAT-E 250ML 12/CS
Phosphat-E
Begins to eliminate reactive phosphate immediately upon addition to aquarium.
Safe for all inhabitants of reef and marine fish-only aquaria.
Each ml eliminates 1 ppm phosphate in 4 US gallons of water (250ml treats 1,000 US-gallons).
Helps facilitate the removal of phosphate from aquaria during periods when dissolved organic mat... This item is sold individually. — FREE shipping when ordering $75 or more of qualifying items....more. | 731106 | $34.57 | |
| | Brightwell Aquatics | KORALCOLOR 500ML 12/CS
KoralColor
Provides numerous elements important to the formation of various biochromes (biological pigments), complex molecules that give coloration to plant and animal cells through their selective color-absorption and -reflection characteristics.
Formulated specifically to provide trace quantities of elements for gradual incorpor... This item is sold individually. — FREE shipping when ordering $75 or more of qualifying items....more. | 731136 | $35.81 | |
| | | CALXMAX 2 PT CALCIUM/ALKALINITY 2 GALLON
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. | 535100 | $42.29 | |
| | Seachem | STABILITY ENGLISH 2 L 4/CS
Seachem Stability
Stability™ will rapidly and safely establish the aquarium biofilter in freshwater and marine systems, thereby preventing the #1 cause of fish death: “new tank syndrome”. Stability™ is formulated specifically for the aquarium and contains a synergistic blend of aerobic, anaerobic, and facultative bacteria which facilitate the breakdown of waste organics, ammonia, ... This item is sold individually. — FREE shipping when ordering $75 or more of qualifying items....more. | 729075 | $42.33 | |
| | Brightwell Aquatics | PHOSPHAT-E 2L 4/CS
Phosphat-E
Begins to eliminate reactive phosphate immediately upon addition to aquarium.
Safe for all inhabitants of reef and marine fish-only aquaria.
Each ml eliminates 1 ppm phosphate in 4 US gallons of water (250ml treats 1,000 US-gallons).
Helps facilitate the removal of phosphate from aquaria during periods when dissolved organic mat... This item is sold individually....more. | 731110 | $44.63 | |
| | | ULTIMATE SNOW 32 OZ
Ultimate Snow
Ultimate Snow is a unique blend of natural organic and inorganic carbonate based micro-fine particles that have the ability to carry nutrients directly to corals. This gives the aquarists the ability to dose specific supplements directly to the corals as the particles in Ultimate Snow are precisely sized as to be captured by corals as food. In addition, Ultimate Sn... ...more. | 535315 | $51.26 | |
| | Brightwell Aquatics | PHOSPHAT-E 500ML 12/CS
Phosphat-E
Begins to eliminate reactive phosphate immediately upon addition to aquarium.
Safe for all inhabitants of reef and marine fish-only aquaria.
Each ml eliminates 1 ppm phosphate in 4 US gallons of water (250ml treats 1,000 US-gallons).
Helps facilitate the removal of phosphate from aquaria during periods when dissolved organic mat... This item is sold individually. — FREE shipping when ordering $75 or more of qualifying items....more. | 731108 | $53.23 | |
| | Brightwell Aquatics | STRONTION 2L 4/CS
Strontion
Highly-concentrated ionic strontium solution.
Incorporated by corals, clams, and other reef-building invertebrates into aragonite, the mineral that is secreted as skeletal material.
Stronger than most competing strontium solutions.
Contains no unwanted organic material such as EDTA, gluconate, or polygluconate.
Over 5... This item is sold individually. — FREE shipping when ordering $75 or more of qualifying items....more. | 731102 | $57.18 | |
| | | BALANCED ION MAGNESIUM SUPPLE 1 GALLON
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. | 535090 | $58.45 | |
| | Seachem | MARINE BUFFER ENGLISH 4 KG 1/CS
Seachem Marine Buffer
Marine Buffer™ will safely raise marine pH to 8.3. It will not raise pH above 8.3 even if inadvertently overdosed. Marine Buffer™ is a blended product and is not just sodium bicarbonate or sodium carbonate, commonly sold as a substitute. Such products can raise pH to dangerous levels if not used properly. Marine Buffer™ contains sodium, magnesium, calcium, st... This item is sold individually. — FREE shipping when ordering $75 or more of qualifying items....more. | 729089 | $58.48 | |
| | Seachem | REEF BUILDER 4KG 1/CS
Seachem Reef Builder
Reef Builder ™ raises carbonate alkalinity without immediately impacting on pH. With long term use there will be a tendency to stabilize at pH 8.3. Carbonates and calcium are essential to all coral growth. If either becomes deficient, coral growth will cease, followed by a rapid decline in coral health. Used as directed, Reef Builder™ will not deplete calcium,... This item is sold individually. — FREE shipping when ordering $75 or more of qualifying items....more. | 729111 | $58.48 | |
| | | ROWAKALK 3KG BUCKET
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... — FREE shipping when ordering $75 or more of qualifying items....more. | 728603 | $59.35 | |
| | Seachem | REEF Advantage CALCIUM ENGLISH 4 KG 1/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. | 729045 | $77.21 | |
| | Seachem | PRIME 4 LITER 2/CS
Seachem Prime
A complete and concentrated conditioner for both fresh and salt water. Removes chlorine, chloramine and ammonia. Prime™ converts ammonia into a safe, non-toxic form that is readily removed by the tank’s biofilter. May be used during tank cycling to alleviate ammonia/nitrite toxicity. Prime™ detoxifies nitrite and nitrate, allowing the biofilter to more efficiently re... This item is sold individually. — FREE shipping when ordering $75 or more of qualifying items....more. | 729029 | $78.29 | |
Aquaculture / Aquarium / Reef Tank / Marine 
