(11/20/2009) - Wow after reading some of the reviews on hear I'm shocked that there are people that don't like this salt. I have only ever used IO salt and I probably will never change. If it isn't broke don't fix it. I have noticed that if you have a lot of SPS in your tank you need to stick to a weekly water change or your calcium will go down. I can not give it a 5 star rating because I have never used anything eles or a probably would.

(11/08/2007) - Instant Ocean and Reef Crystals are just about the best quality and most reliable consistancy salt you can buy.

(08/02/2006) - Hey Powedertang (why won't you use your real name???) Are you talking about the s-15 report that was created by a COMPETITOR of Instant Ocean??? This salt has been recognized by 100,000's of aquarists for years and years as a great product. Some of the most respected leaders of the industry recognize the quality and consitancy of this product. I would challange anyone to provide any documentation other than a self-serving 'report' by a competitor that shows this product is detrimental to aquatic life. People like 'powdertang' (ie someone from Aquacraft me thinks) should not be given any credibility in reviews like this. I hope that the moderators of these reviews remove this type of review. It is nothing more than a lure to get unsuspecting people to another products web site and is not based in any type of independent scientific study.

(05/06/2006) - was rated very badly read the s-15 report at http://www.aquacraft.net/index.html

(03/05/2006) - Well, I have to agree with the other posters on this salt... it really is great and does a good job... I do REALLY like the new screw on top... they could have kept the same 200 gallon mix bucket but oh well...

(09/21/2005) - The previous poster pretty much says what most say about this product, and I agree completely that it is the best value and has proven itself for more than two decades in my reefs. Please get a reactor if you are looking to keep your calcium level high; salt mixes are a poor way of doing this, and the radical swings in level will eventually cause catastrophic results. If you can't afford a reactor, go to ozreef.org and they have DIY plans available. Your reef fauna will thank you.

(11/25/2004) - I do not understand why Instant Ocean reduced their bucket size … maybe for shipping purposes. I do like the screw top .. easier to remove … good improvement! I have used their salt product since 1980 and have found it to be a very high quality product. At $0.22 per gallon, it is still the best value.

(06/01/2004) - A 160 Gallon Bucket at the price you use to pay for a 200 Gallon size. Thank's but no Thank's! But you get a screw on top. Big Deal.. I will pay the extra $5.00 For Kent Sea Salt. My Calcium Levels remain more consistently around the 400 mg range with Kent anyway where with I O It does not.