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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.

27 Items

Set Descending Direction
  1. Seachem Prime

    Seachem Prime

    Starting at: $2.85
    Order by 3:30pm EST for Same Day Shipping (M-F)
    Add to Wish List
  2. Seachem Neutral Regulator

    Seachem Neutral Regulator

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

    Seachem SeaGel - Phosphate, Silicate & Organic Waster Remover

    Starting at: $5.70
    See Individual Item
    Add to Wish List
  4. 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
  5. 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
  6. Seachem Reef Zoo Plankton

    Seachem Reef Zoo Plankton

    Starting at: $13.08
    See Individual Item
    Add to Wish List
  7. Seachem Stability

    Seachem Stability

    Starting at: $2.75
    Order by 3:30pm EST for Same Day Shipping (M-F)
    Add to Wish List
  8. 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
  9. Seachem Clarity

    Seachem Clarity

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

    Seachem Cupramine

    Starting at: $4.00
    Order by 3:30pm EST for Same Day Shipping (M-F)
    Add to Wish List
  11. 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
  12. 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
  13. 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
  14. Seachem Paraguard

    Seachem Paraguard

    Starting at: $4.68
    Order by 3:30pm EST for Same Day Shipping (M-F)
    Add to Wish List
  15. 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
  16. 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
  17. 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
  18. 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
  19. 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
  20. 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
  21. Seachem Reef Fusion 2

    Seachem Reef Fusion 2

    Starting at: $7.23
    See Individual Item
    Add to Wish List
  22. 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
  23. Seachem Purigen

    Seachem Purigen

    Starting at: $8.05
    Order by 3:30pm EST for Same Day Shipping (M-F)
    Add to Wish List
  24. 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
  25. Seachem Reef Fusion 1 & 2 500 ml Bundle

    Seachem Reef Fusion 1 & 2 500 ml Bundle

    Special Price $14.45 Regular Price $17.00
    This product will be back ordered
    Add to Wish List
  26. Seachem Reef Advantage Strontium 600g

    Seachem Reef Advantage Strontium 600g

    Special Price $6.76 Regular Price $7.95
    Usually Ships In 2 - 3 Business Days After Submission of Order
    Add to Wish List
  27. Seachem Reef Kalkwasser 250g

    Seachem Reef Kalkwasser 250g

    Special Price $10.07 Regular Price $11.85
    This product will be back ordered
    Add to Wish List
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