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  • Just a quick note to thank you again and express my appreciation for all your help on this purchase. Your guys are great!
    - Rich
  • Thank you for the excellent service. Very impressed with service from you folks.
    - Tim
  • I was kind of leery about shelling out that kind of money without knowing what kind customer service I would get. Not anymore! I now feel like I made a wise choice.
    - Nicole
  • John was excellent in answering all my questions and even talked at length about new products and fish related stuff. I really enjoyed doing business with this company!
    - Travis
  • I just want to say thank you greatly for all of your assistance! I am highly impressed by your customer service focus.
    - Nicole
  • The item that I purchased was delivered a lot faster than expected, not to mention a professional job packing the light.
    - Michael
  • Thank you, John, for your prompt attention... I will definitely order from you guys again!
    - Jack
  • Tank is gorgeous. Whole family is loving it. Now we're spending our evenings watching it instead of TV!
    - Joan
  • Just like your feedback points out, you guys are great to deal with. I look forward to many more future purchases.
    - Lenny
  • Thanks again for the great service it was a pleasure dealing with you. I will definitely be recommending people your way.
    - Pete
  • It's been a long time since I've had such great customer service. I truly appreciate it and will be using you from here on out.
    - Eve
  • I want to thank you for you service. I will be recommending you to all of my fish friends and to the ten different fish clubs that I belong to.
    - Charles
  • We can't thank you enough! The chiller just arrived as you promised and we are back in business! You are a miracle-worker!
    - Dr. Delbridge, PMP
  • I've been in the hobby for almost 5 years now and have dealt with a lot of vendors. I am very impressed with the packaging and fast shipment!
    - Thai
  • When it comes time to buy a new tank. Fish Tanks Direct will be the first place I go...
    - Marc
  • Customer satisfaction is certainly a top priority for you, and we would definitely want to do business with you again.
    - Janet
  • I am writing this e-mail to say thank you for your great customer service.
    - Jimmy
  • The tank was delivered safe and sound. More over... the way it was packaged up for shipment was Excellent!
    - Darren
  • I couldn't find a better price on the item I wanted! The best price and the best service? You guys are great.
    - Dave
  • Fish Tanks Direct is PHENOMENAL! Their customer service is hands down the best I’ve come across in 10 years of reef keeping.
    - Wesley
  • I must say as being a business owner, I commend your company on the customer service and speed of your deliveries.
    - Rob
  • Thank you very much for your fast and efficient service... awesome!
    - Marlene
  • Just wanted to say thanks again for all you and your team did in assisting me with the fish tank. It looks great and I'm a very satisfied customer.
    - Scott
  • Thank you, John!!! Great customer service... give yourself a pat on the back!
    - Dary
  • Thank you sooo much for all your help. We love our new acrylic tank and setup. Everything is so much clearer and the color of the fish is much truer.
    - Jone H
Salifert Strontium Test

Salifert Strontium Test

Model #:
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Product Description

Strontium Test
Strontium plays an important role by accelerating coral and calcareous algae growth.
NSW contains approx. 7 9 mg/L strontium.
Since the growth of corals and calcareous algae goes hand in hand with strontium and calcium depletion, depletion of calcium usually means depletion of strontium as well.

It is advisable to maintain a strontium concentration between 5 and 20 mg/L.

Strontium measurement is a necessity but is unfortunately a relatively difficult test. Perhaps in forthcoming years this will change when newer and easier methods for strontium measurement will become available.

It therefore is a test, which many hobbyists will not conduct frequent enough.

For that particular reason strontium additives should be designed in such a way that a too low or a too high strontium concentration is avoided. With the Salifert Natural-Strontium additive we have reached this aim. When used in combination with our Coral Calcium additive according to the instructions then the need for strontium measurement is greatly reduced and would have to be performed only once every few months. Furthermore NSW contains strontium associated with sulfate. This form lacks the toxicity, the commonly used, strontium chloride has. We therefore use predominantly strontium sulfate together with some other ingredients to avoid the occurrence of an ionic imbalance. It also makes it more effective and less toxic than strontium chloride.

The Salifert strontium test kit detects both ionically free and moderately complexed strontium. Salifert was the first to introduce a strontium test kit.

Approx. 25 tests per kit. Measures in approx. 5 ppm increments

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