I am in need of some Ca and Mg and might order a bunch off them now that I know about them. They are actually more expensive then royal aquariums, so I might try them instead. If you look up the contact info for reef water it has a phone number and address, and if you google map the address and street view it the location is a private residence. I would not be too worried about ordering off them. A lookup of the listed contact number also shows a computer repair company in the same area, so probably legit. I couldn't find payment info on their website and didn't follow through with a dummy order far enough to see if it was https or PayPal or what, so this was a bit sketch, but I would still be fine,
Dan

Let's look at Soda Ash for example. Nothing on BRS site is sold by pound so it's not obvious how to compare.

Reefwater:

http://www.reefwater.net/shop/index....product_id=202

Soda Ash $4.99 / pound

BRS

http://www.bulkreefsupply.com/brs-bu...upplement.html

Soda Ash $18.99 / 7 pounds (1 gallon)

If you're a BRS preferred reefer it's $17.09 / 7 pounds.

I have a gallon of the BRS Soda Ash handy and it says 7 pounds on it. Their site doesn't seem to list its weight.

BRS is much cheaper but by the time you factor in shipping, taxes and built-in duty who knows. I have a ton of trust for anything coming from BRS and order from them all the time.

well i only did a quick look at the HC GFO price
their price is 24.99 per lbl while BRS is 53.99 for 1.75 lbs which is 30.85 per lbl

you're right that's really odd i'm not sure how it's possible. great price if it's accurate!

I ordered a 2 part kit that came with calc, alk, mag, bottles, measuring cups, etc. It was the same price including shipping as BRS was before all the tax and shipping. I don't see the same kit offered on either web site any more though (maybe it was promotional as it was around Christmas time) but it was indeed all packaged and labeled with BRS product labels. I had no issues but I never got around to dosing so I haven't bought from them since.