Oceanic vs. IO

[Witfull]

bottled water? whats the cost factor? i go through a good amount of salt...

[Gina]

I'll have the check our LFS next time I'm there and see what they charge for their bottled salt water and compare to what we are paying to mix our own. It would be interesting to know, just for the heck of it.

[Woodstock]

Check out the new seachem reef formula.. You will not have to mix salts any longer.. It comes in very close to NSW level in all params.. ..........Peace, Jeff

Peace, Jeff

Could you post the parameters of Seachem Reef Formula for us?

[Cougra]

Hummm... well... mathematically speaking.. Oceanic makes 200 gal and IO makes 160 gal... (that's at a lower salinity than 35 pppm ...so it's a bit low)... so, if you used 20% more of the oceanic, they'll run out at the same time. So mix 70% oceanic with 30% IO and they'll run out at the same time.

I'm sorry to say this but your math is really far out! You are using a 40% difference and you'll run out of Oceanic long before you run out of IO if you add it at that rate.

If you want them to run out together you need to use 4 parts of IO to every 5 parts of Oceanic.



If you want the math: You have a IO:Oceanic ratio of 160:200 divide the ratio by 10 to make it easier to work with and you have 16:20. Each part of the ratio can be divided by 4 leaving a ratio of 4:5. Therefore you need to use 4 parts IO to every 5 Parts Oceanic.

If you want that in percentages you have a 9 part solution (4+5) so you need:
For instant ocean:
4/9*100% = 44.4444%
For oceanic:
5/9*100% = 55.5556%

[Woodstock]

Gezzz... Witty, just mix it half/half

[gqjeff]

Composition of Seachem ReefSalt™

Ion

Concentration (ppm)
Chloride
19336
Sodium
10752
Sulfate
2657
Magnesium
1317
Potassium
421
Calcium
442
Carbonate/Bicarbonate
142
Strontium
9.5
Boron
16
Bromide
64
Iodide
0.060
Lithium
0.3
Silicon
<0.1
Iron
0.0098
Copper
0.0003
Nickel
<0.015
Zinc
0.0107
Manganese
0.0023
Molybdenum
0.0098
Cobalt
0.0004
Vanadium
<0.015
Selenium
<0.019
Rubidium
0.118
Barium
<0.04


NOTE: Depending on specific gravity, alkalinity should be about 4.0–5.0 meq/L, calcium should be between 380–430 mg/L, magnesium should be between 1200–1350 mg/L, and strontium should be 8–12 mg/L. Between water changes some elements may become depleted through utilization. Seachem offers a full line of reef supplements for restoring and maintaining many parameters, including (but not limited to) calcium, magnesium, strontium, iodide and alkalinity.