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Additives

Additives

Aquarium Specialty offers marine and freshwater from all of the top additives companies from brands such as Brightwell Aquatics, Zeovit, DVH, ESV,Triton Labs, Red Sea, & Two Little Fishies to name a few. If you need help choosing aquarium additives that are best for your aquarium needs then please give us a call or email us. We are here to help.

First Time Customers Use Coupon Code: WELCOMEExtra 10% With Account Checkout to Save 10%
15% Off Hanna Instruments & 20% Off ATI Straton LED Lights.

Items 1-36 of 58

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  1. Start Up Rapid Cycling Kit

    Start Up Rapid Cycling Kit

    Starting at: $5.96
    See Individual Item
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  2. Seachem Prime

    Seachem Prime

    Starting at: $2.85
    Order by 3:30pm EST for Same Day Shipping (M-F)
    Add to Wish List
  3. Brightwell Aquatics Alkalin 8.3

    Brightwell Aquatics Alkalin 8.3

    Starting at: $7.17
    See Individual Item
    Add to Wish List
  4. Quantum USA Water Stabiliser

    Quantum USA Water Stabiliser

    Starting at: $8.49
    See Individual Item
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  5. Quantum USA Pure Phyto

    Quantum USA Pure Phyto

    Starting at: $8.49
    See Individual Item
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  6. Brightwell Aquatics NeoNitro

    Brightwell Aquatics NeoNitro

    Starting at $6.49

    See Individual Item
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  7. Brightwell Aquatics NeoPhos

    Brightwell Aquatics NeoPhos

    Starting at $6.49

    See Individual Item
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  8. Reef Blueprint Anticip8 - Coral Tonic

    Reef Blueprint Anticip8 - Coral Tonic

    Starting at: $5.99
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  9. Dr Tim's Aquatics Waste-Away Natural Aquarium Cleaner Saltwater Aquaria

    Dr Tim's Aquatics Waste-Away Natural Aquarium Cleaner Saltwater Aquaria

    Starting at: $8.99
    Out Of Stock
    Add to Wish List
  10. Fauna Marin PowerPhos

    Fauna Marin PowerPhos

    Starting at: $9.00
    See Individual Item
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  11. QUANTUM USA ARAGONITE A

    QUANTUM USA ARAGONITE A

    Starting at: $8.99
    See Individual Item
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  12. FritzZyme 9 Saltwater

    FritzZyme 9 Saltwater

    Starting at: $3.68
    Order by 3:30pm EST for Same Day Shipping (M-F)
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  13. Fritz Aquatics RPM Elements Calcium/Buffer System

    Fritz Aquatics RPM Elements Calcium/Buffer System

    Starting at: $6.76
    See Individual Item
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  14. Seachem Neutral Regulator

    Seachem Neutral Regulator

    Starting at: $3.36
    Order by 3:30pm EST for Same Day Shipping (M-F)
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  15. Seachem SeaGel 250ml

    Seachem SeaGel - Phosphate, Silicate & Organic Waster Remover

    Starting at: $5.70
    See Individual Item
    Add to Wish List
  16. Seachem Laboratories Flourish Tabs Plant Supplement - 10 Tabs

    Seachem Laboratories Flourish Tabs Plant Supplement - 10 Tabs

    Special Price $7.12 Regular Price $8.38
    Order by 3:30pm EST for Same Day Shipping (M-F)
    Add to Wish List
  17. Seachem Laboratories Flourish Excel Plant Supplement 500ml

    Seachem Laboratories Flourish Excel Plant Supplement 500ml

    Special Price $9.22 Regular Price $10.85
    This product will be back ordered
    Add to Wish List
  18. Korallen-Zucht LPS Amino Acids Concentrate

    Korallen-Zucht LPS Amino Acids Concentrate

    Starting at: $8.39
    Order by 3:30pm EST for Same Day Shipping (M-F)
    Add to Wish List
  19. Seachem Stability

    Seachem Stability

    Starting at: $2.75
    Order by 3:30pm EST for Same Day Shipping (M-F)
    Add to Wish List
  20. Seachem Garlic Guard

    Seachem Garlic Guard

    Starting at: $3.03
    Order by 3:30pm EST for Same Day Shipping (M-F)
    Add to Wish List
  21. Seachem Clarity

    Seachem Clarity

    Starting at: $3.52
    Order by 3:30pm EST for Same Day Shipping (M-F)
    Add to Wish List
  22. Seachem Cupramine

    Seachem Cupramine

    Starting at: $4.00
    Order by 3:30pm EST for Same Day Shipping (M-F)
    Add to Wish List
  23. Seachem Reef Complete

    Seachem Reef Complete

    Starting at: $4.19
    Order by 3:30pm EST for Same Day Shipping (M-F)
    Add to Wish List
  24. Seachem Reef Advantage Magnesium

    Seachem Reef Advantage Magnesium

    Starting at: $4.21
    Order by 3:30pm EST for Same Day Shipping (M-F)
    Add to Wish List
  25. Seachem Reef Trace

    Seachem Reef Trace

    Starting at: $4.28
    Order by 3:30pm EST for Same Day Shipping (M-F)
    Add to Wish List
  26. Seachem Paraguard

    Seachem Paraguard

    Starting at: $4.68
    Order by 3:30pm EST for Same Day Shipping (M-F)
    Add to Wish List
  27. Seachem Reef Calcium

    Seachem Reef Calcium

    Starting at: $5.98
    Order by 3:30pm EST for Same Day Shipping (M-F)
    Add to Wish List
  28. Seachem Reef Plus

    Seachem Reef Plus

    Starting at: $6.15
    Order by 3:30pm EST for Same Day Shipping (M-F)
    Add to Wish List
  29. Seachem Reef Builder

    Seachem Reef Builder

    Starting at: $6.05
    Order by 3:30pm EST for Same Day Shipping (M-F)
    Add to Wish List
  30. Seachem Reef Buffer

    Seachem Reef Buffer

    Starting at: $6.05
    Order by 3:30pm EST for Same Day Shipping (M-F)
    Add to Wish List
  31. Seachem Reef Carbonate

    Seachem Reef Carbonate

    Starting at: $6.14
    Order by 3:30pm EST for Same Day Shipping (M-F)
    Add to Wish List
  32. Seachem Reef Fusion 1

    Seachem Reef Fusion 1

    Starting at: $7.23
    Order by 3:30pm EST for Same Day Shipping (M-F)
    Add to Wish List
  33. Seachem Reef Fusion 2

    Seachem Reef Fusion 2

    Starting at: $7.23
    See Individual Item
    Add to Wish List
  34. Seachem Reef Advantage Calcium

    Seachem Reef Advantage Calcium

    Starting at: $7.28
    Usually Ships in 1 - 2 Business Days After Submission of Order
    Add to Wish List
  35. Seachem Purigen

    Seachem Purigen

    Starting at: $8.05
    Order by 3:30pm EST for Same Day Shipping (M-F)
    Add to Wish List
  36. Seachem Reef Strontium

    Seachem Reef Strontium

    Starting at: $5.98
    Order by 3:30pm EST for Same Day Shipping (M-F)
    Add to Wish List
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