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Additives & Supplements

Aquarium Supplies

Fish Additives & Supplements

We carry a wide variety of additives produced by the most respected companies serving the aquarium hobby, such as Kent Marine, E.S.V., Seachem and Two Little Fishies. 2-part Calcium and Alkalinity Supplements are popular additives among reef keepers since calcium and alkalinity tend to deplete quickly in a reef aquarium.

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  1. Two Little Fishies Peter Wilkens Kalkwasser 1Lb

    Two Little Fishies Kalkwasser 1Lb

    "Kalkwasser" is the German term for limewater, a saturated solution of calcium hydroxide in water. Over twenty years ago, Peter Wilkens developed and described the proper methods for administering this solution to marine aquariums...
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    $12.00
  2. Two Little Fishies C-Balance - 32 oz.

    Two Little Fishies C-Balance - 32 oz.

    Calcium tends to run out fast in aquariums, especially in reef aquariums. Corals use up a lot of calcium while developing, so it is very essential that they have a generous supply of it when forming their exoskeletons. But just li...
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    $18.48
  3. Two Little Fishies pH-Balance Marine Aquarium Buffer - 450gram

    Two Little Fishies pH-Balance Marine Aquarium Buffer - 450gram

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    Two Little Fishies - pH-Balance Marine Aquarium Buffer The pH of seawater in the open ocean is stable, normally between 8.0 and 8.3due to the carbonate-bicarbonate buffering system. In tide pools and aquariums the pH can vary m...
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    $7.48
  4. Two Little Fishies Sea Elements 250 mL

    Two Little Fishies Sea Elements 250 mL

    TwoLittleFishies Sea Elements 250ML  Trace and minor element supplement for Marine Aquariums, developed by Julian Sprung. Independent studies show that some trace elements accumulate in home aquariums to potentially toxic lev...
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    $13.48
  5. Two Little Fishies Iodine Concentrate 250 mL

    Two Little Fishies Iodine Concentrate 250 mL

    Performance Iodine ConcentrateTM Two Little Fishies Performance Iodine ConcentrateTM is a solution that provides the element iodine in a form easily utilized by marinelife. Biological processes, filtration, precipitation, and inco...
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    $5.98
  6. Two Little Fishies BioPronto Marine - 500 ml

    BioPronto Marine 500 ml

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    Two Little Fishies BioPronto Marine contains cultured naturally occurring microbes that rapidly start the biological filtration process. Use it to start the nitrification cycle in new aquariums or to enhance nitrification and deni...
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    $25.99
  7. Two Little Fishies C-Balance - 32 oz.

    Two Little Fishies C-Balance

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    Calcium tends to run out fast in aquariums, especially in reef aquariums. Corals use up a lot of calcium while developing, so it is very essential that they have a generous supply of it when forming their exoskeletons. But just li...
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    $18.48
  8. Two Little Fishies AcroPower Amino Acids for SPS Corals - 500 mL

    Two Little Fishies AcroPower Amino Acids for SPS Corals - 500 mL

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    Two Little Fishies` new formula supplies amino acids that corals need to build their skeletal architecture. Corals, like other cnidaria, have a special ability to uptake dissolved amino acids across their entire surface. Closed sy...
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    $12.89
  9. Two Little Fishies AcroPower Amino Acids for SPS Corals 250 mL

    Two Little Fishies AcroPower Amino Acids for SPS Corals 250 mL

    Two Little Fishies` new formula supplies amino acids that corals need to build their skeletal architecture. Corals, like other cnidaria, have a special ability to uptake dissolved amino acids across their entire surface. Closed sy...
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    $8.99
  10. Two Little Fishies AcroPower Amino Acids for SPS Corals - 1000 ml

    Two Little Fishies AcroPower Amino Acids for SPS Corals - 1000 ml

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    Two Little Fishies` new formula supplies amino acids that corals need to build their skeletal architecture. Corals, like other cnidaria, have a special ability to uptake dissolved amino acids across their entire surface. Closed sy...
    ONLY
    $22.49

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