calaxa said:That calcium can't be correct. That's actually dangerously high compared to your alk and Mg. The correctly balanced alk should be 13.43 meq/l at 630 ppm Ca. The correct Mg should be 1890 ppm. Are you adding some type of Ca additive? Are you using RO/DI or is that tap? If tap, I'm suspecting the Ca is coming from that.
From Red Sea's product description:
The Calcium level in natural seawater at 35ppt is approximately 400 ppm.
The Coral Pro formula provides elevated levels of calcium at the "lower than natural" salinities preferred in reef aquariums.
Table shows Calcium levels of Coral Pro mixed in RO water at 24C 75F and salinity.
s.g. Salinity Calcium Qty of Salt
1.021 30.6 ppt 420 ppm 33.4 g/l 1.4 lb/5 US gal
1.023 32.8 ppt 450 ppm 35.8 g/l1.5 lb/5 US gal
1.025 35.0 ppt 480 ppm 38.2 g/l1.6 lb/5 US gal
Coral Pro is available in the following consumer packs:7 kg (15.4 lb) - 210 L (55 gal)22 kg (48.4 lb) - 660 L (175 gal)
redfishbluefish said:Phyl said:I found THIS interesting.I wish they w/could test for DOC...
Wow Phyl great article. I retract what I said earlier .its your salt (and maybe with a little sand effect). Of the thirteen salts they tested, only one (Coralife), was below the standard for silica? All the rest were above the acceptable level for silica. My next question is who developed the standard for aquariums at 0.000-0.500 mg/L does this have a meaning to quality of life in the tank? As a chemist/biologist, I find this stuff real interesting. My only concern with the article is that they did not include a control (this is high school stuff), which should have been their water!
Also, although some of the numbers were not statistically significant, it still is interesting that many salts differ considerable in a quantity of additives they contain .sort of scary who has the BEST salt (and other goodies not mentioned)? WHAT SALT SHOULD I BUY??? Now I dont know. I wish I didnt read this article the ostrich effect (If I cant see it, its not happening).
JohnS_323 said:I'm shocked at how low our Mg is. I dose it every time I do a water change. Looks like I'll have to pick up the pace on that a little. Also, the Silica has me concerned. I guess we'll be adding a High-S membrane to our RO/DI unit too. Hopefully that helps. I think Sera makes a silica remover. Has anyone ever tried it?
Phyl said:Bruce, do you have such a media? Can we put it after the RO/DI as an extra "stage" to absorb the silicates? Can it be used on the tank itself or just fresh water (I'm afraid I know the answer to this, but it doesn't hurt to ask).
JerseyWendy said:Yowser. After just reading through this thread, I will most certainly NOT be using them for several reasons. (Go ahead and call me a chicken.... :-[)
1. I test frequently, but not for EVERYTHING.
2. I observe my animals closely and probably spend more time doing it than I should.
3. Everyone and everything appears to be doing well and thriving.
4. I'd be afraid to change "things" after getting back an unsatisfactory result.
That's all I can think of right now. : Ja, I'm a chicken, I guess.
Phyl said:Thanks. LMK.