HW-Marinemix Reefer Salt Mix 160 Gallons - HW Wiegandt

hw-Marinemix Reefer Salt Mix
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HW-Marinemix Reefer Salt Mix 160 Gallons - HW Wiegandt

98% Recommend this to a friend (80 of 82)

SKU: 208270
$76.99
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Quick Overview

Why does BRS recommend this?


We have been using HW salt in our office tanks for a while with great success.  The salt is very consistent and mixes quickly and clean.  With no unnecessary added chemicals that most salt mixes add to appear clean, HW has passed the test, and standards that many public aquariums and high end displays require in a salt mix.


hw-Marinemix Reefer Salt Mix is a high purity blend of salt mix produced using a synthetic process and does not contain any recycled components. Created specifically for the reef aquarium and the constant demand for minerals, trace elements, amino acids and biocatalysts. Provides enhanced calcium and magnesium concentrations for vigorous growth of corals.



  • One of the first synthetic salt mixes ever produced

  • No anti-caking agents

  • No chemical or environmental pollutants, no nitrates, phosphates or silicates

  • Natural, stable pH and optimal alkalinity

  • Contains no EDTA which can chelate many necessary trace elements

  • Optimized with amino acids and organically stabilized iodine - great for the reef hobbyist

  • Makes approx. 160 Gallons of solution at 1.024 salinity

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Product Questions

I am currently using tropic marin actif salt mix. If I wanted to switch to this hw-Marine Mix, can I just switch for my next partial water change or do I need to make the transition more gradual?
Question by: Bryan on May 8, 2016 8:36:00 AM
No answers yet. Be the first to answer the question!
if i use this salt mix will i need supplements?
Question by: johnathan on May 23, 2016 2:20:00 PM
Great question! HW is optimized with amino acids and organically stabilized iodine, it contains a proprietary blend of trace elements so there really isn't a need for additives.
Answer by: Carter (Admin) on May 25, 2016 3:19:00 PM
the details of this salt state that

BRS recommends using a complete salt mix, to save money and time on testing supplies and major element adjustments. Upon BRS analysis - hw-Marinemix Reefer contained Calcium at 445-450 ppm, Alk of 9.0 dKH, Magnesium at 1380 ppm.

at what salinity was this tested at?
Question by: scott fernandez on Aug 8, 2015 10:30:00 PM
Great question, this was tested at 1.026 SG or 35 PPT. Feel free to let us know if you have any further questions!
Answer by: Connor (Admin) on Aug 10, 2015 4:41:00 PM
I can't seem to find the composition of the ingredients of this salt. Do you have the list of the ingredients/percentages etc.? Thanks.
Question by: Tariq on May 17, 2016 8:00:00 AM
Upon BRS analysis - hw-Marinemix Reefer contained Calcium at 445-450 ppm, Alk of 9.0 dKH, Magnesium at 1380 ppm This is an entire box mixed at a 1.026 SG
Answer by: Connor (Admin) on May 18, 2016 6:45:00 PM

Full Details

hw-Marinemix Reefer Salt Mix is highly used for reef hobbyists across Europe. hw-Wiegandt has been producing aquarium salt for over 50 years experience producing salt mix, boasting its professional use in public aquariums, universities and research facilities since 1968.


hw-Marinemix is produced under strict quality control guidelines using a biocatalyst system based on the analysis of natural seawater.


BRS recommends using a complete salt mix, to save money and time on testing supplies and major element adjustments. Upon BRS analysis - hw-Marinemix Reefer contained Calcium at 445-450 ppm, Alk of 9.0 dKH, Magnesium at 1380 ppm.


20 Kg box

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  • Excellent, mixes fast and clear, no smell By Joejoe on 5/24/2016

    Switched from Salinity brand salt, to this - very happy. This stuff is clean.
  • Great salt By Adam on 5/15/2016

    Can not believe how much cleaner this salt mix is. The water in the mixing barrel is crystal clear. I'm three 15% water changes and My fish and corals all seem fine with the change.
  • Will continue to use, but expensive By Aj on 5/14/2016

    Easy to mix with RODI keeps parameters fairly predictable and in line. However relatively expensive and tends to clump a bit in box. Not deal breakers
  • The best salt ever! By garythibeault on 5/6/2016

    Great salt easy mixes,for the money the best salt you can buy. keeps all my corals growing and happy! love it!
  • Salt mix By Joep on 4/30/2016

    I used so many different salt mixes, right now I like this for a few reasons it does not have a sticky feeling, no phosphates or nitrate issues, the only done side is I tend to have to use more salt mix.
  • Best salt I've ever used By David on 4/25/2016

    I've used just about every salt available to hobbiest & this is by far the best I've ever used!
  • Nice Salt By Edward on 3/31/2016

    As almost everyone has said there is zero residue in the mix container. The directions on the box are lacking, so for those of you who mix salt by weight I have found that 147 grams per gallon of water gets you to 1.025 SG.
  • Using On BRS Recommendation By KerryF on 3/29/2016

    I noticed ORP and Alk values were a bit lower when switching to this salt. Fish, inverts and corals love it tho.
  • Mixes fast and clean By John on 3/19/2016

    I switched from Reef Crystals because I always got brown residue in my mix bucket. This mixes fast and clean with no residue. Worth the extra money.
  • Worth the extra money By Cave Man on 3/16/2016

    This salt is the best way to help maintain perfect water parameters for the reef. Using regular water changes with a lightly to med stocked system will keep your trace elements in order. The pricing is not too much more then the cheap stuff. Why not give your tank the best chance it has to flourish?
  • Ammonia in the salt mix By Maggie on 3/15/2016

    I wishes there is option for 0 or negative star rating. Can you believe HW reefer salt mix carries ammonia? My tank is running more than half year. I recently switched my salt mix from red sea coral pro to HW reefer, my livestock started to perform weird, so I did 10G water change, my 60G tank was not getting better, so i did another 10G water change next day, and keep continually to change water 10G for the third day. The more water changed, the worse situation I finally got, then I realized to test my salt mix, it has 0.2 ammonia, then I tested RODI water, it read 0. No overfeeding, no livestock died, no overstocking (just 4 fishes and 3 cleaners) before switching salt mix. I can't find out any reason could break out my system. Even though BRS switched red sea coral pro back to me, but my tank has to go through another cycle again, many corals died during this moment.
  • Excellent product By Aaron L on 3/15/2016

    Just switched from reef crystals and like this product much better. It mixes quicker and cleaner with no residue left in my mixing container. The parameters are much more in line with my tank mixing at 1.026. Alk is around 9 and calcium around 430. Will keep using this salt.

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