I just wanted to touch base here and thank everyone for your patience while we address the concerns some of you have conveyed about Aquarium Systems Reef Crystals Sea Salt. Your complete satisfaction is very important to all of us here at Drs. Foster and Smith and we stand behind every product that we sell.
I have personally used Aquarium Systems sea salt as a hobbyist and in a professional capacity for well over 30 years. In my opinion Instant Ocean and Reef Crystals is the most reasonably priced and consistent Synthetic Sea salt on the market.
We have used Reef Crystals sea salt in our Aquaculture Coral and Marine Life Facility since we opened the doors in July 2005. Currently we go though one pallet (36- 160 gallon Buckets/pallet) of this salt every 6 days. The pallets of sea salt used here come from the same batches/trucks that deliver the salt that we distribute to our customers.
The first bucket from every new pallet of Reef Crystals is tested here at our facility so that we can adjust the batch to match the water parameters of our coral rows. In my opinion any sea salt brand on the market today will require some minor adjustment if we are trying to match the exact parameters of our system or aquarium. In reef aquaria that are heavily stocked with small polyp stony corals, this is very important, where in reef aquaria that contain little or no stony corals, this is not as critical.
We test each new pallet by first mixing a full bucket with RO/DI water to 53mS (1.0259) and let this aireate for 24 hours. From there we take a sample of water in a clean glass beaker, and then test the pH, Conductivity (Specific Gravity), Calcium, Alkalinity, and Magnesium levels.
In the two and a half years of testing this water I have never had a batch that was significantly different than the others. I am not saying that bad batches cant happen during manufacturing, but I have never experienced this phenomenon here at our facility with Reef Crystals sea salt that we use in house.
We have consistently tested Reef Crystals salt which has yielded the following results when mixed for 24 hours and tested with a calibrated conductivity meter or refractometer to 53mS (1.0259).
Specific Gravity- 1.0259/53mS- (Conductivity meter calibrated with 53mS solution)
pH- 8.18-8.38 (Electronic pH meter calibrated with 7.0 and 10.0 standard calibration solution)
Alkalinity- 11.7-12. 9- (Aquarium Systems Test Kit calibrated with a standard reference solution prepared in our Pharmacy)
Calcium- 385-440 mg/L (Salifert Test Kit cross referenced with Aquarium Systems Calcium Test Kit).
Magnesium- 1200-1350 mg/L (Salifert Test Kit cross referenced with Sea Chem Magnesium Kit)
One mistake that I have personally made in the past is not calibrating my equipment properly. Most manufacturers of Refractometers recommend calibrating these devices with distilled water which leaves a reasonable margin of error when testing seawater at in the 1.025 range. The most accurate way to calibrate any swing arm hydrometer, refractometer, or conductivity meter is with the use of a 53mS solution. This can either be purchased, or even made at home with table salt and distilled water. There are several articles here on RC by Randy Holmes-Farley, one of which is titled:
Reef Aquarium Salinity- Homemade Calibration Standards
I just wanted to add some additional information to this thread to convey our own results and to reiterate that we will refund or replace any defective product. Thank you all for your patience and understanding again.
Sincerely,
Kevin Kohen
Director of LiveAquaria
Drs. Foster and Smith