Another Prime and Safe Thread
- Thread starter Fish Tank Travis
- Start date
Added to my cart.
Will just need one scoop of each size for my ten gallon and four of the larger scoops for my 29.
Hold on gents, before posting what treats what, you need to know what your local water supply is treated with, and at what level. Otherwise you could be overdosing, or wasting a lot of conditioner. Seachem's directions are useless without that info.
I was looking at these, but there is a range for each spoon. Like 15-30 mg because the actual amount can vary depending on the substance being measured.
from the description "Getting an exact measurement can vary upon the consistency of what is being measured.
That is to say whether it is heavy like a salt or light like flour. Please adjust accordingly and be careful and safe with any measurements"
https://www.amazon.com/Micro-Measur...rd_wg=JbGZA&psc=1&refRID=E73TCCBSPHJH7J638WEW
from the description "Getting an exact measurement can vary upon the consistency of what is being measured.
That is to say whether it is heavy like a salt or light like flour. Please adjust accordingly and be careful and safe with any measurements"
https://www.amazon.com/Micro-Measur...rd_wg=JbGZA&psc=1&refRID=E73TCCBSPHJH7J638WEW
Excellent point. I don't have chloramine and chlorine max (according to reporting) is 1.79 ppm. I believe seachem's safe dosing is based on 1.4ppm.
Does the 200mg "safe scoop" come with the 50g size?It is mentioned on the web site, but my 250g bottle did not have it.
"Use 200 mg Safe (scoop) per each 200 L (50 gallons) as needed to reduce chlorine and chloramine or per 50 L (13 gallons) for ammonia."
"Use 200 mg Safe (scoop) per each 200 L (50 gallons) as needed to reduce chlorine and chloramine or per 50 L (13 gallons) for ammonia."
1) Robham is correct. tsp is a measure of volume. mg is a measure of mass. 1 Tsp of sugar does not have the same mass as a tsp of salt or flour or water. The 200 mg scoop that Seachem provides is presumably exactly the size needed to hold 200 mg of safe.
2) RD is also correct. Seachem uses chemicals in prime and safe to offset a specific mass of other chemicals, not to treat a specific mass of water. Seachem is providing an estimate of how much is needed based upon how much it estimates is in the water being treated. If you have a different mass of chemicals in the water, the safe/prime will be too much or too little of what is needed.
Of course, the other issue is that water suppliers also sometimes change dosages for one reason or another, so even if one amount per liter of water is correct this year, it might not be correct next year, or even tomorrow. One has to choose between cost savings (not wasting product), but risk taking since the amount given might not be adequate.
2) RD is also correct. Seachem uses chemicals in prime and safe to offset a specific mass of other chemicals, not to treat a specific mass of water. Seachem is providing an estimate of how much is needed based upon how much it estimates is in the water being treated. If you have a different mass of chemicals in the water, the safe/prime will be too much or too little of what is needed.
Of course, the other issue is that water suppliers also sometimes change dosages for one reason or another, so even if one amount per liter of water is correct this year, it might not be correct next year, or even tomorrow. One has to choose between cost savings (not wasting product), but risk taking since the amount given might not be adequate.
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http://www.seachem.com/safe.php
If you want to calculate your exact Safe needs for your water, and can get the precise chemicals in the water from the supplier, here is the formula for Safe that Seachem uses:
A: In some situations one may be aware of their exact chloramine or chlorine levels and will wish to precisely tailor the amount of Safe used. This information is provided as is and it is assumed one is sufficiently adept at the mathematics to do the proper calculations in order to determine the amount of Safe needed for a given concentration of chloramine, chorine or ammonia.
The standard dose of 100 mg/100 L of water will remove 1 mg/L (ppm) of chloramine, 1.4 mg/L (ppm) of chlorine and 0.33 mg/L (ppm) of ammonia.
A general formula that should help to determine the amount to use in mg for a given chloramine level is
x = L*c where x = amount to use in mg, L = volume of water (tank volume if added to tank, or source volume if water change water), c = chloramine level in mg/L (ppm). So a 500 L tank with 2.5 mg/L of chloramine would require 500 * 2.5 = 1,250 mg or 1.25 g of Safe, for gallons the formula is
x = 4*G*c (where G = gallons and 4 is a constant)
for chlorine it would be
x = 0.7*L*n where x = amount to use in mg, L = volume of water (tank volume if added to tank, or source volume if water change water). n = chlorine level in mg/L (ppm). So a 500 L tank with 2.5 mg/L of chlorine would require 500 * 2.5 * 0.7 = 875 mg, for gallons the formula is
x = 2.8*G*n (where G=gallons and 2.8 is a constant)
for ammonia it would be
x = 3*L*a where x = amount to use in mg, L = volume of water (tank volume if added to tank, or source volume if water change water). a = ammonia level in mg/L (ppm). So a 500 L tank with 2.5 mg/L of ammonia would require 500 * 2.5 * 3 = 3750 or 3.75 g for gallons the formula is
x = 12*G*n (where G=gallons and 12 is a constant)
(Emphasis is mine.)
Again, keep in mind, that most if not all water suppliers vary the amount of chlorine and chloramine they use, and the amount that is in your particular water will vary from what they report at the plant. You will not have the same amount for various reasons (e.g., your physical distance from the plant, how long the water you are using has been sitting in your hot water heater or pipes.)
If you want to calculate your exact Safe needs for your water, and can get the precise chemicals in the water from the supplier, here is the formula for Safe that Seachem uses:
A: In some situations one may be aware of their exact chloramine or chlorine levels and will wish to precisely tailor the amount of Safe used. This information is provided as is and it is assumed one is sufficiently adept at the mathematics to do the proper calculations in order to determine the amount of Safe needed for a given concentration of chloramine, chorine or ammonia.
The standard dose of 100 mg/100 L of water will remove 1 mg/L (ppm) of chloramine, 1.4 mg/L (ppm) of chlorine and 0.33 mg/L (ppm) of ammonia.
A general formula that should help to determine the amount to use in mg for a given chloramine level is
x = L*c where x = amount to use in mg, L = volume of water (tank volume if added to tank, or source volume if water change water), c = chloramine level in mg/L (ppm). So a 500 L tank with 2.5 mg/L of chloramine would require 500 * 2.5 = 1,250 mg or 1.25 g of Safe, for gallons the formula is
x = 4*G*c (where G = gallons and 4 is a constant)
for chlorine it would be
x = 0.7*L*n where x = amount to use in mg, L = volume of water (tank volume if added to tank, or source volume if water change water). n = chlorine level in mg/L (ppm). So a 500 L tank with 2.5 mg/L of chlorine would require 500 * 2.5 * 0.7 = 875 mg, for gallons the formula is
x = 2.8*G*n (where G=gallons and 2.8 is a constant)
for ammonia it would be
x = 3*L*a where x = amount to use in mg, L = volume of water (tank volume if added to tank, or source volume if water change water). a = ammonia level in mg/L (ppm). So a 500 L tank with 2.5 mg/L of ammonia would require 500 * 2.5 * 3 = 3750 or 3.75 g for gallons the formula is
x = 12*G*n (where G=gallons and 12 is a constant)
(Emphasis is mine.)
Again, keep in mind, that most if not all water suppliers vary the amount of chlorine and chloramine they use, and the amount that is in your particular water will vary from what they report at the plant. You will not have the same amount for various reasons (e.g., your physical distance from the plant, how long the water you are using has been sitting in your hot water heater or pipes.)
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Seachem changed their dosage rate last year, to dumb things down for consumers. A really stupid move in my opinion. I spoke with the CEO/President about this, as well as a number of company reps, and posted about it in this past discussion.
https://www.monsterfishkeepers.com/forums/threads/seachem-safe.651005/
edited to add; the result of my conversation with the president of Seachem, Dr. Greg Morin, was the info above that DrStrangelove just posted now being on Seachem's website.
https://www.monsterfishkeepers.com/forums/threads/seachem-safe.651005/
edited to add; the result of my conversation with the president of Seachem, Dr. Greg Morin, was the info above that DrStrangelove just posted now being on Seachem's website.
