Instant Ocean synthetic sea salt simulates natural seawater for thriving marine aquariums. Developed through sophisticated biological and chemical testing, Instant Ocean provides your marine fish, invertebrates, and plants the necessary major, minor, and trace elements. Exceptional solubility, uniform particle size, and superior material selection made Instant Ocean the standard by which other synthetic sea salts are measured. No other product has such an extensive history of successful proven usage.

Reef Crystals Reef Salt * Enriched synthetic sea salt designed for use in reef aquariums
* Extra calcium, trace elements and vitamins to maintain a thriving reef system
* Nitrate and phosphate-free formulation


Enriched Reef Crystals Reef Salt is formulated especially for reef aquariums. Contains extra calcium, select trace elements, and vitamins above natural seawater concentrations. These extra measures reduce the need for constant supplements and additives to replenish essential substances quickly depleted in thriving reef aquariums. Reef Crystals also contains special additives to help detoxify excess heavy metals, such as copper, and is fully compatible with all marine aquariums.

Pros: easy to use, works well

Cons: none

I used this when I had my saltwater tank. it worked fine. Pretty much like any other salt supplement. And as any other salt additive it is a pain to mix to get it completely dissolved.

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I have used this brand of salt in my marine tank from the start - about 3 years. I have never been dissatisfied with anything about it. The price is reasonable, the quality is pretty good. My fish give it 2 fins up!

Pros: Dissolves pretty quickly, leaves little residue after mixing

Cons: None

Believe it or not,some species of Hermit Crabs need both a fresh dish of water,and a dish of saltwater,to survive.
I found this product easy to find,easy to mix up,and long lasting for the Hermies.

Pros: Easy to use

Cons: none

I have used Instant Ocean salt mix for at least 6 years now. The past couple years it seems hard to dissolve sometimes but overall it is a reliable product.

Pros: reliable

Cons: takes a while to dissolve