I know it's been a while, but I am suffering some serious physical problems once again which keep me from posting as much as I would like to. I am following a few threads and post once-in-a-while, but my own is sorely lacking for the above mentioned reason. (how's that for wordy?)
Anyhow, it appears I am going to lose my supply of OceanPure Pro salt, and have been looking at other salts to prepare for my next buy.
I got and tested getanked salt but mixed it with the calcium and got this:
Salinity: 1.024 (refractometer)
Alkalinity: 3.8 dKh (Salifert)
Calcium: 400 ppm (Salifert)
Magnesium: 1320 ppm (Salifert)
Ammonia: 0 (API)
Silicate: 0 (Seachem)
Nitrite: 0 (Seachem)
Nitrate: 0 (Seachem)
Phosphate: 0 - .008 (D-D)
Obviously alk was very low but then I found out from the maker that I wasn't supposed to add the Calcium into it because it would precipitate out the alk. Upon further investigation, I verified that, made a new batch, and got a normal dKh. This salt does impress me, although there is somewhat of a learning curve to using it correctly.
And then, on a lark I picked up a bucket of Red Sea Pro and tested it tonight. I know Marc has reviewed this salt in the past, but I have been in several discussions in which reef keepers were not entirely trusting of that report. I guess that goes with the territory of being tied into the business on multiple levels.
So here are my results:
Salinity: 1.026 (refractomer)
Alkalinity: 6.6 dKh (Salifert)
Calcium: 425 ppm (Salifert)
Magnesium: 1275 ppm (Salifert)
Silicate: .05 mq/l (SeaChem)
Ammonia: 0 (AP)
Phosphate: 0 (D-D/Merk)
That's pretty good IMO. The dKh is too low for me, but it certainly would be good for Zeo-Heads right out of the box. I have to admit I am surprised at the lack of phosphates and ammonia, as well as the very low presence of silicates.