Instant ocean mixing instructions uk

[spamvicious]

Can anyone tell me how many grams of instant ocean salt I’d need to mix 20 litres of water to 1.025 sg?

Their instructions are 1/2 a cup to 1 us gallon. Half a cup is 150g (I think) and 1 us gallon is 3.785 litres according to google.

 

[Fish Fan]

Instant Ocean suggests 1/2 cup/US gallon of water. Based on some general kitchen cooking conversions, 1/2 cup of salt is approximately 150 grams, so I would start there at 150g/gallon.

That said, this just gets you close to your desired specific gravity. I would add about 150 grams of salt per gallon, then stir or circulate with a pump until all the salt is dissolved. Then, check your SG with your refractometer, and adjust the salt or water until you're at your 1.025 sg. In time, you'll get a feel for how much salt to add, and it becomes almost second nature, but always double check with your refractometer.

I hope that helps, good luck!

 

[redfishbluefish]

Here is the States, to get me in the ballpark, I use three US cups per 5 US gallons of RO/DI. In doing a quick internet search, the first hit from THIS UK site stated this:

Marine aquarium owners should aim for a salinity of 1.025 s.g. which is about 35 parts per thousand. That means that for every thousand grammes of freshwater you should add 35 grammes of salt, or 35 grammes of salt per litre of water.

 

[MnFish1]

Can anyone tell me how many grams of instant ocean salt I’d need to mix 20l of water to 1.025 sg?

I would follow the directions on the packaging, since there are different types (i.e calculate it based on the type if IO you have) and then adjust specific gravity accordingly. However, if I did the calculation correctly - approx 40 gm/liter. Also - if you are only using small amounts of salt make sure that you mix the dry salt so that you're getting a homogenous mixture.

 

[MnFish1]

Here is the States, to get me in the ballpark, I use three US cups per 5 US gallons of RO/DI. In doing a quick internet search, the first hit from THIS UK site stated this:

Marine aquarium owners should aim for a salinity of 1.025 s.g. which is about 35 parts per thousand. That means that for every thousand grammes of freshwater you should add 35 grammes of salt, or 35 grammes of salt per litre of water.

Since some salts are drier than others (there is the water of hydration present in most salt mixes) - however, starting with 35 and adding more may be more beneficial!

 

[Mark E]

Even if it’s 35g / litre when you open the packaging it will be more later on as the salt takes up water from the atmosphere.

If you always use the same volume of water the best (but not always easiest) way is to mix the dry salt thoroughly and then divide it into weighed out portions as soon as you open it airtight plastic boxes would be great, but even plastic bags tied with a knot would work.

 

[aquaman67]

35 grams per liter is 35 parts per thousand.

 

[Reef.]

I start with 40g per litre, then test, just need to either add a tiny bit more or a little rodi water.