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

92% Recommend this to a friend (83 of 90)

SKU: 208270
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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!
How much do I use for this 30 gallon tank? I tried to find the direction but nothing for mixing direction per gallon.
Question by: Max McLaughlin on Jun 28, 2016 2:48:00 PM
Great question!
Salt mixes typically do not include an exact amount to use rather you will use a refractometer and slowly add salt until you reach 1/026 SG or 35 PPT. Typically you can start with 1/2 cup per gallon and increase from there.
Answer by: Connor (Admin) on Jun 28, 2016 5:56:00 PM
Is this packaged in one bag in the box?
Question by: Steven on Jun 14, 2016 8:42:00 PM
Great question!
This will be an individual bag with all of the salt. Feel free to let us know if you have any further questions.
Answer by: Connor (Admin) on Jun 15, 2016 10:32:00 AM
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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  • Not for me By Tom on 8/13/2016

    After using this salt mix for 3 months (2 boxes) I've switched back to Red Sea. The good - This salt does mix up fast, clear with no residue, and to advertises parameters. But for some reason I couldn't keep a stable pH. After about a month I started seeing some corals recede. By month 3 I had lost several colonies including my clam that I had for 4 years.

    Some additional info - Tank is a 120g with a 30g sump. Water changes are done weekly. To see if I could get the pH up I tried daily water changes for 5 days. With this salt my pH was between 7.6 - 7.8. I do use a 2 part solution but no other additives. ORP with this salt was also low, in the 250 range. Skimmer foam wasn't as thick and produced less skimmate. No fish or soft corals were lost. All livestock issues were with LPS/SPS corals and my clam.
  • Great product By Robsyp on 8/9/2016

    Switched from reef crystals and I'm very happy that I did.
  • Great salt, but.... By David on 8/5/2016

    This has been a great salt for me, but when a large package marked "REEFER" is sitting on your door step and you have large amounts of light pouring out from behind your window shades.., your neighbors are prone to start rumors. All kidding aside, I am on my 3rd box and this salt mixes very easy, no residue, good clarity and mixes very close to the parameters that I keep my DT at.
  • Will not make 160 Gallons - Still like the product By Jeffrey on 7/24/2016

    I probably won't stop using the salt, mixes fast and without the brown film. Parameters meet my needs. I am pissed they advertise that it makes 160 gallons because that is not true! I use a Ace Roto Mold 55 gallon container and I fill it to the 50 gallon mark every time. Salt is mixed to specific gravity of 1.023, which is actually less than the advertised 1.024. I've gone through 6 boxes and each box has made about 140-145 gallons.
  • Good stuff By Tracy on 7/13/2016

    Mixes well,,,havent had any issues!
  • Bad Alk By blaine on 6/27/2016

    I started my new 75G with this salt and immediately noticed I had low ALK. So I mixed the salt up by rolling it around and i've done two water changes since my startup and i'm still getting low ALK in my tank. Just tested a new batch and it came out to 5.936 dkh. I've never had a problem like this with other salts (reef crystals, red sea pro and regular). I do not recommend this.
  • So far So good By Paul on 6/8/2016

    Started off with Salinity on my office tank. I have recently switched to this stuff. Only 2 water changes so far, so i'm not sure there is much going on. Haven't done any solid testing with it, but the tank seems to be doing a bit better with it. Though I am also a bit more religious about my additives now, which could also be contributing.
  • Best Salt Mix Ever By Dennis on 6/6/2016

    I recently was watching a BRSTV video and they were using this salt so I figured it would try it out. This is the best salt hands down I have ever used. I have been in the hobby for 15 years and my corals love this salt. I noticed that corals colors changed brighter and more highlights in my chalice corals. I have been moving corals around low flow high flow low light and high light after doing all of this I had mild results. After using this salt all of these problems disappeared. I would highly recommend to any reefer to at least try out this salt. Best stuff out their!
  • 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!