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At AquaCave, we offer some of the best selection and best prices on Seachem Aquarium Additives and Supplements for your marine, reef, and freshwater aquarium.

60 of 66 Items
  • Seachem Cupramine Cooper Treatment 20 Liters. Seachem Cupramine Cooper Treatment 20 Liters.

    Seachem

    Seachem Cupramine Cooper Treatment 20 Liters.

    Seachem Cupramine Cooper Treatment 20 Liters. Cupramine effectively eradicates Oodinium, Cryptocaryon, Amyloodinium, Ichthyophthirius, and other ectoparasites of both freshwater and marine fish. It is superior to copper sulfate, chloride & citrate:...

    $905.99
  • Seachem Safe 20 Kg. Seachem Safe 20 Kg.

    Seachem

    Seachem Safe 20 Kg.

    Seachem Safe 20 Kg. Description Safe� is the complete and concentrated dry conditioner for both fresh and salt water. Safe� removes chlorine, chloramine, and ammonia. Safe� converts ammonia into a safe, non-toxic form that is readily removed by...

    $509.99
  • Seachem Prime, 20 liters Seachem Prime, 20 liters

    Seachem

    Seachem Prime, 20 liters

    Seachem Prime, 20 liters Prime™ is the complete and concentrated conditioner for both fresh and salt water. Prime™ removes chlorine, chloramine, and ammonia. Prime™ converts ammonia into a safe, non-toxic form that is readily removed by the tank’s...

    $375.99
  • Seachem Marine Buffer 20 kg. Seachem Marine Buffer 20 kg.

    Seachem

    Seachem Marine Buffer 20 kg.

    Seachem Marine Buffer 20 kg. 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...

    $309.99
  • Seachem Acid Buffer 20 kg/ 44 LBS

    Seachem

    Seachem Acid Buffer 20 kg/ 44 LBS

    Seachem Acid Buffer 20 kg/ 44 LBS Acid Buffer Adjusts pH to 5.0—8.0 Designed for use in planted aquariums Converts carbonate alkalinity (KH) into available CO2 Contains no phosphate Acid Buffer™ is a non–phosphate buffer to lower pH...

    $298.99
  • Seachem Cupramine Cooper Treatment 2 Liter. Seachem Cupramine Cooper Treatment 2 Liter.

    Seachem

    Seachem Cupramine Cooper Treatment 2 Liter.

    Seachem Cupramine Cooper Treatment 2 Liter. Effectively eradicates Oodinium, Cryptocaryon, Amyloodinium, Ichthyophthirius, and other ectoparasites of both freshwater and marine fish. It is non-acidic, less toxic to fish, remains in solution, and does...

    $119.95
  • Seachem Pristine 4 Liters Seachem Pristine 4 Liters

    Seachem

    Seachem Pristine 4 Liters

    Seachem Pristine 4 Liters. Description Pristine� uses bio-augmentation, a non-chemical and natural method, to improve water quality. It provides bacteria that break down excess food, waste and detritus in freshwater and marine systems. It will also...

    $109.95
  • Seachem Pond Prime 4L

    Seachem

    Seachem Pond Prime 4L

    Seachem Pond Prime 4L Pond Prime® is a complete conditioner that removes chlorine, chloramine, and detoxifies ammonia and nitrite. It also provides essential ions and stimulates natural slime coat. Pond Prime® also enhances nitrate removal. It...

    $99.99
  •  Seachem Reef Advantage Calcium 4 kg.  Seachem Reef Advantage Calcium 4 kg.

    Seachem

    Seachem Reef Advantage Calcium 4 kg.

    Seachem Reef Advantage Calcium 4 kg. Reef Advantage Calcium™ is 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...

    $96.95
  • Seachem Prime, 4 liters Seachem Prime, 4 liters

    Seachem

    Seachem Prime, 4 liters

    Seachem Prime, 4 liters Prime™ is the complete and concentrated conditioner for both fresh and salt water. Prime™ removes chlorine, chloramine, and ammonia. Prime™ converts ammonia into a safe, non-toxic form that is readily removed by the tank’s...

    $96.91
  • Seachem Stability 4 Liters Seachem Stability 4 Liters

    Seachem

    Seachem Stability 4 Liters

    Seachem Stability 4 Liters New tank stabilization system for marine and freshwater Rapidly and safely establishes bio-filter Prevents "New Tank Syndrome" Stability® will rapidly and safely establish the aquarium biofilter in freshwater and marine...

    $89.99
  • Seachem Clarity 4 Liters. Seachem Clarity 4 Liters.

    Seachem

    Seachem Clarity 4 Liters.

    Seachem Clarity 4 Liters. Water clarifier for marine and freshwater Clears all types of clouding Reef and plant safe Clarity™ is the ultimate clarifier for both fresh and saltwater. It employs an advanced polymeric flocculating agent that is both...

    $76.95
  •  Seachem Reef Builder 4 kg.  Seachem Reef Builder 4 kg.

    Seachem

    Seachem Reef Builder 4 kg.

    Seachem Reef Builder 4 kg. 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...

    $73.99
  • Seachem Marine Buffer 4 kg. Seachem Marine Buffer 4 kg.

    Seachem

    Seachem Marine Buffer 4 kg.

    Seachem Marine Buffer 4 kg. 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...

    $73.99
  • Seachem Reef Buffer 4 kg. Seachem Reef Buffer 4 kg.

    Seachem

    Seachem Reef Buffer 4 kg.

    Seachem Reef Buffer, 4 kg. Reef Buffer™ is intended primarily for use in a reef system where the maintenance of a pH of 8.3 is often difficult. When used as directed Reef Buffer™ will raise the pH of your reef system to 8.3 without fear of accidentally...

    $73.99
  • Seachem Pristine 2 Liters

    Seachem

    Seachem Pristine 2 Liters

    Seachem Pristine 2 Liters. Description Pristine� uses bio-augmentation, a non-chemical and natural method, to improve water quality. It provides bacteria that break down excess food, waste and detritus in freshwater and marine systems. It will also...

    $59.95
  • Seachem Prime, 2 liters Seachem Prime, 2 liters

    Seachem

    Seachem Prime, 2 liters

    Seachem Prime, 2 liters Prime™ is the complete and concentrated conditioner for both fresh and salt water. Prime™ removes chlorine, chloramine and ammonia. Prime™ converts ammonia into a safe, non-toxic form that is readily removed by the tank’s...

    $59.69
  • Seachem Reef Advantage Magnesium 4 kg. Seachem Reef Advantage Magnesium 4 kg.

    Seachem

    Seachem Reef Advantage Magnesium 4 kg.

    Seachem Reef Advantage Magnesium 4 kg. Product Description Reef Advantage Magnesium� is a concentrated (80,000 ppm) optimized blend of magnesium, chloride, and sulfate salts designed to restore depleted levels of magnesium with minimal impact to the...

    $54.95
  • Seachem Reef Trace 2 Liter. Seachem Reef Trace 2 Liter.

    Seachem

    Seachem Reef Trace 2 Liter.

    Seachem Reef Trace 2 Liter. Reef Trace supplies a broad range of trace elements demonstrated to be necessary for proper reef health and growth.Trace elements are normally depleted by utilization, oxidation and precipitation. The latter two processes...

    $49.95
  • Seachem Stability 2 Liters Seachem Stability 2 Liters

    Seachem

    Seachem Stability 2 Liters

    Seachem Stability 2 Liters New tank stabilization system for marine and freshwater Rapidly and safely establishes bio-filter Prevents "New Tank Syndrome" Stability® will rapidly and safely establish the aquarium biofilter in freshwater and marine...

    $48.99
  • Seachem Garlic Guard, 2 Liters  Seachem Garlic Guard, 2 Liters

    Seachem

    Seachem Garlic Guard, 2 Liters

    Seachem Garlic Guard, 2 Liters Garlic Guard is an appetite/flavor enhancer for freshwater and saltwater fish. GarlicGuard will help renew the interest of poor or finicky eaters. GarlicGuard contains the naturally derived, active ingredient found in...

    $43.99
  • Seachem Reef Carbonate 2 Liters Seachem Reef Carbonate 2 Liters

    Seachem

    Seachem Reef Carbonate 2 Liters

    Seachem Reef Carbonate 2 Liters Reef Carbonate is a concentrated (4,000 meq/L) optimized blend of carbonate and bicarbonate salts designed to restore and maintain alkalinity in the reef aquarium. Calcium and carbonates are essential to all coral growth...

    $39.99
  • Seachem Reef Calcium, 2 liter Seachem Reef Calcium, 2 liter

    Seachem

    Seachem Reef Calcium, 2 liter

    Reef Calcium is a concentrated (50,000 mg/L) bioavailable polygluconate complexed calcium intended to maintain calcium in the reef aquarium without altering pH...Seachem Reef Calcium, 2 literReef Calcium™ is a concentrated (50,000 mg/L)...

    $39.95
  • Seachem Reef Plus, 2 liter Seachem Reef Plus, 2 liter

    Seachem

    Seachem Reef Plus, 2 liter

    Seachem Reef Plus, 2 literSeaChem Reef Plus ™ is a full spectrum reef supplement containing trace elements, vitamins, and amino acids demonstrated to have a positive impact on the growth of corals and other desirable reef creatures. Reef...

    $39.95
  • Seachem Reef Fusion #1 4 LIters Seachem Reef Fusion #1 4 LIters

    Seachem

    Seachem Reef Fusion #1 4 LIters

    Seachem Reef Fusion #1 4 LIters Reef Fusion two-part system Product Description Reef Fusion 1� and Reef Fusion 2� are the foundation of a system formulated to provide the essentials for the reef aquarium. Reef Fusion 1� provides calcium, while...

    $38.99
  • Seachem Reef Kalkwasser 2 kg. Seachem Reef Kalkwasser 2 kg.

    Seachem

    Seachem Reef Kalkwasser 2 kg.

    Seachem Reef Kalkwasser 2 kg. Very pure calcium hydroxide Ideal for increasing calcium in top-off water Increases pH with no impact on carbonate alkalinity Reef Kalkwasser™ is a pure calcium hydroxide with unsurpassed purity and solubility...

    $38.99
  • Seachem Safe 1 Kg. Seachem Safe 1 Kg.

    Seachem

    Seachem Safe 1 Kg.

    Seachem Safe 1 Kg. Description Safe� is the complete and concentrated dry conditioner for both fresh and salt water. Safe� removes chlorine, chloramine, and ammonia. Safe� converts ammonia into a safe, non-toxic form that is readily removed by...

    $37.52
  • Seachem Reef Fusion #2 4 Liters Seachem Reef Fusion #2 4 Liters

    Seachem

    Seachem Reef Fusion #2 4 Liters

    Seachem Reef Fusion #2 4 Liter Reef Fusion two-part system Product Description Reef Fusion 1� and Reef Fusion 2� are the foundation of a system formulated to provide the essentials for the reef aquarium. Reef Fusion 1� provides calcium, while...

    $36.99
  • Seachem Reef Complete, 2 liter Seachem Reef Complete, 2 liter

    Seachem

    Seachem Reef Complete, 2 liter

    Seachem Reef Complete, 2 liter Reef Complete™ is a concentrated (160,000 mg/L) optimized blend of ionic calcium designed to restore and maintain calcium to levels found in natural seawater without affecting pH. Calcium and carbonates are...

    $34.95
  •  Seachem Reef Advantage Calcium, 1,000 gr.  Seachem Reef Advantage Calcium, 1,000 gr.

    Seachem

    Seachem Reef Advantage Calcium, 1,000 gr.

     Seachem Reef Advantage Calcium, 1,000 gr. Reef Advantage Calcium™ is 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...

    $29.95
  • Seachem Reef Kalkwasser 1 kg. Seachem Reef Kalkwasser 1 kg.

    Seachem

    Seachem Reef Kalkwasser 1 kg.

    Seachem Reef Kalkwasser 1 kg. Very pure calcium hydroxide Ideal for increasing calcium in top-off water Increases pH with no impact on carbonate alkalinity Reef Kalkwasser™ is a pure calcium hydroxide with unsurpassed purity and solubility...

    $28.99
  •  Seachem Reef Builder, 1,200 gr.   Seachem Reef Builder, 1,200 gr.

    Seachem

    Seachem Reef Builder, 1,200 gr.

    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...Seachem Reef Builder, 1,200 gr.Reef Builder ™ raises carbonate alkalinity without immediately...

    $26.95
  • Seachem Reef Buffer, 1,000 gr. Seachem Reef Buffer, 1,000 gr.

    Seachem

    Seachem Reef Buffer, 1,000 gr.

    Reef Buffer is intended primarily for use in a reef system where the maintenance of a pH of 8.3 is often difficult...Seachem Reef Buffer, 1,000 gr.Reef Buffer™ is intended primarily for use in a reef system where the maintenance of a pH of 8.3...

    $26.95
  •  Seachem SureStart Pack 3 x 100mL Pack  Seachem SureStart Pack 3 x 100mL Pack  Seachem SureStart Pack 3 x 100mL Pack

    Seachem

    Seachem SureStart Pack 3 x 100mL Pack

    Seachem SureStart Pack 3 x 100mL Pack Contains 100 mL bottles of Prime, Stability, Pristine Make water safe; remove chlorine, chloramine and ammonia Establish the Bio-filter Eliminate Sludge and Detritus Freshwater and marine HeadStart...

    $19.95
  • Seachem Cupramine Cooper Treatment 250 ml. Seachem Cupramine Cooper Treatment 250 ml.

    Seachem

    Seachem Cupramine Cooper Treatment 250 ml.

    Seachem Cupramine Cooper Treatment 250 ml. Effectively eradicates Oodinium, Cryptocaryon, Amyloodinium, Ichthyophthirius, and other ectoparasites of both freshwater and marine fish. It is non-acidic, less toxic to fish, remains in solution, and does not...

    $19.95
  • Seachem Pristine 500 ml. Seachem Pristine 500 ml.

    Seachem

    Seachem Pristine 500 ml.

    Seachem Pristine 500 ml. Description Pristine� uses bio-augmentation, a non-chemical and natural method, to improve water quality. It provides bacteria that break down excess food, waste and detritus in freshwater and marine systems. It will also...

    $19.95
  • Seachem Reef Advantage Magnesium, 1,200 gr. Seachem Reef Advantage Magnesium, 1,200 gr.

    Seachem

    Seachem Reef Advantage Magnesium, 1,200 gr.

    Reef Advantage Magnesium is a concentrated (80,000 ppm) optimized blend of magnesium, chloride, and sulfate salts designed to restore depleted levels of magnesium...Seachem Reef Advantage Magnesium, 1,200 gr.Reef Advantage Magnesium™ is a...

    $19.95
  • Seachem Reef Dip 500 ml 17 fl. oz.. Seachem Reef Dip 500 ml 17 fl. oz..

    Seachem

    Seachem Reef Dip 500 ml 17 fl. oz..

    Seachem Reef Dip 500 ml 17 fl. oz. Reef Dip™ contains elemental iodine complexed to a protective slime coat for safely and gently disinfecting corals.It is effective against bacteria, fungus, and protozoans. It may be used prophylactically...

    $19.95
  • Seachem Reef Advantage Calcium, 500 gr. Seachem Reef Advantage Calcium, 500 gr.

    Seachem

    Seachem Reef Advantage Calcium, 500 gr.

    Seachem Reef Advantage Calcium, 500 gr. Reef Advantage Calcium™ is 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...

    $16.95
  • Seachem Prime, 500 ml. Seachem Prime, 500 ml.

    Seachem

    Seachem Prime, 500 ml.

    Seachem Prime, 500 ml. Prime™ is the complete and concentrated conditioner for both fresh and salt water. Prime™ removes chlorine, chloramine and ammonia. Prime™ converts ammonia into a safe, non-toxic form that is readily removed...

    $15.95
  • Seachem Reef Fusion #1 1 Liter Seachem Reef Fusion #1 1 Liter

    Seachem

    Seachem Reef Fusion #1 1 Liter

    Seachem Reef Fusion #1 1 Liter Reef Fusion two-part system Product Description Reef Fusion 1� and Reef Fusion 2� are the foundation of a system formulated to provide the essentials for the reef aquarium. Reef Fusion 1� provides calcium, while...

    $14.99
  • Seachem Reef Fusion #2 1 Liter Seachem Reef Fusion #2 1 Liter

    Seachem

    Seachem Reef Fusion #2 1 Liter

    Seachem Reef Fusion #2 1 Liter Reef Fusion two-part system Product Description Reef Fusion 1� and Reef Fusion 2� are the foundation of a system formulated to provide the essentials for the reef aquarium. Reef Fusion 1� provides calcium, while...

    $14.99
  • Seachem Reef Kalkwasser 500 gr. Seachem Reef Kalkwasser 500 gr.

    Seachem

    Seachem Reef Kalkwasser 500 gr.

    Seachem Reef Kalkwasser 500 gr. Very pure calcium hydroxide Ideal for increasing calcium in top-off water Increases pH with no impact on carbonate alkalinity Reef Kalkwasser™ is a pure calcium hydroxide with unsurpassed purity and solubility...

    $14.99
  • Seachem Stability 500 ml. Seachem Stability 500 ml.

    Seachem

    Seachem Stability 500 ml.

    Seachem Stability 500 ml. New tank stabilization system for marine and freshwater Rapidly and safely establishes bio-filter Prevents "New Tank Syndrome" Stability® will rapidly and safely establish the aquarium biofilter in freshwater and marine...

    $14.99
  • Seachem Clarity 500 ml. Seachem Clarity 500 ml.

    Seachem

    Seachem Clarity 500 ml.

    Seachem Clarity 500 ml. Water clarifier for marine and freshwater Clears all types of clouding Reef and plant safe Clarity™ is the ultimate clarifier for both fresh and saltwater. It employs an advanced polymeric flocculating agent that is both...

    $14.95
  • Seachem Reef Buffer, 500 gr. Seachem Reef Buffer, 500 gr.

    Seachem

    Seachem Reef Buffer, 500 gr.

    Seachem Reef Buffer, 500 gr. Reef Buffer™ is intended primarily for use in a reef system where the maintenance of a pH of 8.3 is often difficult. When used as directed Reef Buffer™ will raise the pH of your reef system to 8.3 without fear of...

    $13.95
  • Seachem Reef Builder, 600 gr. Seachem Reef Builder, 600 gr.

    Seachem

    Seachem Reef Builder, 600 gr.

    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...Seachem Reef Builder, 600 gr.Reef Builder ™ raises carbonate alkalinity without immediately...

    $13.95
  • Seachem Marine Trace 500 ml

    Seachem

    Seachem Marine Trace 500 ml

    Seachem Marine Trace 500 ml Replenishment of a number of trace elements is required to maintain an environment ideal for the growth and reproduction of marine life, but while the importance of trace elements has been recognized by aquarists for many...

    $12.99
  • Seachem Reef Nitrogen 500mL

    Seachem

    Seachem Reef Nitrogen 500mL

    Seachem Reef Nitrogen 500mL Nitrogen is an essential element required in metabolic processes, protein synthesis, and growth of corals and macroalgae. Research suggests a tightly closed nitrogen cycle on reefs where concentrations are higher in...

    $12.99
  • Seachem Reef Phosphorus 500mL

    Seachem

    Seachem Reef Phosphorus 500mL

    Seachem Reef Phosphorus 500mL Phosphorus is an essential element required in metabolic processes, protein synthesis, and growth of corals and macroalgae. It is important to maintain phosphorus levels along with nitrogen levels in order to allow for...

    $12.99
  • Seachem Reef Potassium 500mL

    Seachem

    Seachem Reef Potassium 500mL

    Seachem Reef Potassium 500mL Potassium is an essential element required in metabolic processes, protein synthesis, and growth of corals and macroalgae. In systems supported with nitrogen and phosphorus supplementation, potassium utilization rates may be...

    $12.99
  • Seachem Safe 250 gr. Seachem Safe 250 gr.

    Seachem

    Seachem Safe 250 gr.

    Seachem Safe 250 gr. Description Safe� is the complete and concentrated dry conditioner for both fresh and salt water. Safe� removes chlorine, chloramine, and ammonia. Safe� converts ammonia into a safe, non-toxic form that is readily removed by...

    $12.99
  • Seachem Garlic Guard, 500ml

    Seachem

    Seachem Garlic Guard, 500ml.

    Garlic Guard is an appetite/flavor enhancer for freshwater and saltwater fish. GarlicGuard will help renew the interest of poor or finicky eaters. GarlicGuard contains the naturally derived, active ingredient found in garlic, allicin, which has been...

    $12.95
  • Seachem Cupramine Cooper Treatment 100 ml. Seachem Cupramine Cooper Treatment 100 ml.

    Seachem

    Seachem Cupramine Cooper Treatment 100 ml.

    Seachem Cupramine Cooper Treatment 100 ml. Effectively eradicates Oodinium, Cryptocaryon, Amyloodinium, Ichthyophthirius, and other ectoparasites of both freshwater and marine fish. It is non-acidic, less toxic to fish, remains in solution, and does not...

    $12.95
  • Seachem Marine Buffer 500 gr. Seachem Marine Buffer 500 gr.

    Seachem

    Seachem Marine Buffer 500 gr.

    Seachem Marine Buffer 500 gr.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...

    $12.95
  • Seachem Reef Advantage Magnesium, 600 gr. Seachem Reef Advantage Magnesium, 600 gr.

    Seachem

    Seachem Reef Advantage Magnesium, 600 gr.

    Reef Advantage Magnesium is a concentrated (80,000 ppm) optimized blend of magnesium, chloride, and sulfate salts designed to restore depleted levels of magnesium...Seachem Reef Advantage Magnesium, 600 gr.Reef Advantage Magnesium™ is a...

    $12.95
  •  Seachem Reef Complete, 500 ml.   Seachem Reef Complete, 500 ml.

    Seachem

    Seachem Reef Complete, 500 ml.

    Reef Complete is a concentrated (160,000 mg/L) optimized blend of ionic calcium designed to restore and maintain calcium to levels found in natural seawater without affecting pH...Seachem Reef Complete, 500 ml.Reef Complete™ is a concentrated...

    $11.95
  •  Seachem Reef Plus, 500 ml.   Seachem Reef Plus, 500 ml.

    Seachem

    Seachem Reef Plus, 500 ml.

    Seachem Reef Plus, 500 ml. SeaChem Reef Plus ™ is a full spectrum reef supplement containing trace elements, vitamins, and amino acids demonstrated to have a positive impact on the growth of corals and other desirable reef creatures. Reef...

    $11.95
  • Seachem Reef Advantage Strontium 600 gr. Seachem Reef Advantage Strontium 600 gr.

    Seachem

    Seachem Reef Advantage Strontium 600 gr.

    Seachem Reef Advantage Strontium 600 gr. Reef Advantage Strontium™ restores and maintains strontium to levels found in natural sea water. Strontium is utilized by corals in the same manner as calcium and holds a similar importance in...

    $11.95
  • Seachem Reef Calcium, 500 ml. Seachem Reef Calcium, 500 ml.

    Seachem

    Seachem Reef Calcium, 500 ml.

    Seachem Reef Calcium, 500 ml.Reef Calcium™ is a concentrated (50,000 mg/L) bioavailable polygluconate complexed calcium intended to maintain calcium in the reef aquarium without altering pH. Polygluconate complexation confers several benefits: it...

    $11.95
60 of 66 Items