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Assuming your using RO/DI water and haven't accidentally contaminated your solution (for example spilled something in it) it will basically last forever. It won't oxidize and being such a simple solution it doesn't have anything to react with to go stale.
That would be the best place to start.
Initially, I assumed you were referring to the unit of measurement "Cup," but inspecting the item list, it refers to the "household measuring cups" which are each 1/2 Cup in measurement.
So which is it? Cups or cups?
Weighing the powders instead of measuring in 'cups' just seems to be more exact.
(At least that's the way that I prefer.)
The weight by gram for Calcium will be 500 grams, for Soda Ash the weight will be 475 grams. This is the equivalent to the cup rating on the amounts. For Magnesium we recommend measuring out by cup instead as the weight of magnesium can vary greatly depending on moisture content. Feel free to let us know if you have any further questions!
Will I need to does strontium separately?
Ours will not contain the trace elements. Many individuals will add trace elements in separate forms when testing for the elements. Trace elements can also be added by larger water changes with a solid salt mix. Feel free to let us know if you have any further questions!
The magnesium goes down very slowly and is usually only dosed when you finish an entire gallon of calcium and alkalinity solutions. Considering for most folks this is a monthly occurrence at best, there isn't as much need for a dosing pump so people prefer to save the $80 but you can certainly pick a third up if you would like to automate that process. It can be found right here:
The 1/2 will have 8 cups of each element. This will make 4 gallons of Alkalinity, just under 4 gallons of Calcium and just under 2 gallons of Magnesium. Feel free to let us know if you have any further questions. (the 1 gallon will make twice as much)
With 8 cups in 1/2 gallon you will be able to make 4 gallons of Calcium, 3 gallons of Alkalinity and 2 gallons of Magnesium. Feel free to let us know if you have any further questions!
In a perfect world for every 1 mL of calcium dosed, you should dose 1 mL of alkalinity solution. However depending on your salt brand of choice, the specific corals you have, the levels you keep your tank at, and many other variables that may change the 1:1 ratio just slightly. You will want to monitor, and test your levels for the first few weeks of dosing and use our calculator to get the feel for the rate that your tank consumes each element. Most people find that it is not an exact 1:1 ratio, but is pretty close.
If you have any other questions just let us know. Thanks!
Its a bit different with each, but assuming the 1g kit (large kit) there is 16 cups in a gallon so thats about 6 gallons of calcium chloride, 8 of the alkalinity solution and 3 of the magnesium solution but youll have some dry reagent left over.
The only difference between the Large and small is basically the amount of material included with the package. The total package small would likely be plenty for your tank to start with as your consumption won't be as high with the soft coral tank.
I am monitoring water quality with Salifert and Hanna.
150gal, fish, sps: 1.025(Red Sea Coral Pro), dKH 7.8, Cal 420, Mag 1,400
Thats not a problem at all. The only double coverage would be if you wanted to use the reef foundation ABC (as that is what the BRS two part basically is). The other components though (Coral Nutrition and Coral Color) don't overlap with the two part though.
The magnesium is dosed far less often (usually months apart) and in a large enough quantity (20oz) that its actually easier to pour the solution then use the pump :-)
RO/DI water definitely qualifies as filtered water so that is not a problem at all and really the best option.
Once mixed up they will stay homogenous. No need to constantly mix or shake them (though it wont have any negative effect either).
Use the BRS Reef Calculator to calculate dosage amounts. For more information on how to use the 2 Part Solution click here.
Quick Compare - BRS 2 Part Calcium & Alkalinity Start Packages
|Calcium||½ Gallon (3.5lbs)||1 Gallon (7lbs)|
|Alkalinity||½ Gallon (3.5lbs)||1 Gallon (7lbs)|
|Magnesium Chloride||½ Gallon (3lbs)||1 Gallon (6lbs)|
|Magnesium Sulfate||½ Gallon (4lbs)||1 Gallon (8lbs)|
|PVC 1 Gallon Jug with Cap||3||3|
|1 Ounce Dispensing Pumps||2||2|
|100 mL cups (for measuring liquid solution)||2||2|
Top notch! By Brian on 3/6/2017Brian would recommend this product to a friendReally easy to use and kinda fool proof. Really works great!
Solid dosing, solid price By brad on 3/3/2017brad would recommend this product to a friendYou can't possibly beat the value in this product. If you are contemplating purchasing, do it! Do it now! BRS has excellent videos explaining the usage and mixing, calculator is solid. Buy this now!
Simplifies mataining Calciium & Alkalinity By Rick on 2/23/2017Rick would recommend this product to a friendBRS 2 Part Calcium & Alkalinity and the dosing system has made maintaining proper levels very easy.
Easy to use By Mike on 12/8/2016Mike would recommend this product to a friendGreat so far, easy to follow instructions and online calculator make it fool proof. Only gripe, is it comes with 3 jugs and only 2 pump dispensers, why not 3 dispensers?
Great products By July on 10/15/2016July would recommend this product to a friendJuly would recommend this product to a friend's
Great product By Squeak2641 on 9/16/2016Squeak2641 would recommend this product to a friendHuge diff in coral health and easy to use
Great product. By Mark on 9/12/2016Mark would recommend this product to a friendInstructions made it easy to mix up and it works well.
Dummy proof By Neal on 7/24/2016Neal wouldn't recommend this product to a friendJust follow the directions and it does what's it supposed to do. Super easy to get the dosing dialed in.
Great product By Gerard on 7/11/2016Gerard would recommend this product to a friendBeen using this for a few years now. Its a great price and worth the package you get new mixing containers every time to keep things fresh.
AWESOME! By Adestafi on 7/3/2016Adestafi would recommend this product to a friendSo easy to use! Just follow the directions and away you go
Easy to use By Mike on 5/20/2016Mike would recommend this product to a friendEasy to mix and use. Found the online video a great help very much worth the time to watch.
A Good 2 Part Option By CD on 5/9/2016CD would recommend this product to a friendEasy to mix and use. Mixes up crystal clear.
The calculators and videos on the website leave little room for making errors when using this product. I am happy with this 2 part and the price is very reasonable.
The only negative with my order (not the actual 2 Part) that I can think of is that one of my mixing jugs arrived dented on one corner causing it to wobble. It's hardly a big deal since it isn't leaking. I am sure BRS would have taken care of it had I chosen to bother them with such a trivial matter.