Bulk Reef Supply 2 part.

Does anyone use the BRS 2 part? I have it and about to start using it but when I use their calculator I got these results. Please observe the requirements in the red.

Total System Water Volume 300 US Gallons Liters

Instructions

Current Calcium Level:
420 ppm
Desired Calcium Level:
480 ppm
Product:
Select Ca Supplement Dry Anhydrous Calcium Chloride Pellets Dry BRS Crystalline Calcium Chloride (Dihydrate) Limewater (saturated solution) Recipe 1 Calcium Solution Recipe 2 Calcium Solution



Need: 921.1 ml; 31.1 fl oz; 184.2 tsp


Current Alkalinity Level:
2.6
Desired Alkalinity Level:
3.5
Product:
Select Alk Supplement Dry Sodium Bicarbonate Dry Soda Ash (Sodium Carbonate) Recipe 1 Alkalinity Solution (Soda Ash) Recipe 2 Alkalinity Solution (Sodium Bicarbonate) Limewater (Saturated Solution)



Need: 660 ml; 22.3 fl oz; 132 tsp


Current Magnesium Level:
1250 ppm
Desired Magnesium Level:
1350 ppm
Product:
Select Mg Supplement Magnesium Sulphate Magnesium Chloride Gallon of Magnesium Solution



Need: 1693.5 ml; 57.2 fl oz; 338.7 tsp

My question is how do i divide that up. So I divide it by 7 days, 30 days? I called and emailed and no response. Can someone help me please.

 

ReefBruh

standard increases within any given 24 hour period are as follows

Magnesium - no more than 100ppm - so you could do yours in 1 day, but IMO 2 would be better

Calcium - no more than 25ppm - so you should divide yours by 3 days

DKH - no more than 1 degree per day

I did the conversion as 2.6 Alk = 7.8 DKH and you want 3.6 Alk which is 10.28 DKH

so you need to divide your Alk buffer over 3 days

Hope that helps

Steve

 

Hold on, I think the thing you're missing is the time period in which your numbers went down from 480 to 420, 3.5 to 2.6. That would be the number of days you divide it up over.

What you really need is a usage rate. For example, I know (by testing daily for 2 weeks) that my system needs 5 ppm calcium per day. So, you can put in 0 current and 5 desired with my volume, and get an amount per day.

 

Good info Steve! I was also not sure how to divide my doses for each. I knew Mg was no more than 100ppm per 24hr. Period but wasn't sure of the rest. Didn't bother to search or ask but glad for this post. I had just divided my increases over 7 days to be safe.

 

Once you pick which supplement you will be useing it gives the instructions on how to do it on the left side of the page. Also which recipe are you going with? I came up with different numbers/ I used recipe 1 for cal, alk and used gallon of mag and got different calculations on 300 gallons.

Calcium
Fully dissolve the calcium in RO/DI or distilled water. Slowly add the solution to high flow areas of the tank. Avoid directly blasting corals with the concentrated solution. Try not to increase Calcium more than 50 ppm per day. If larger changes are required spread the dose over a few days. Test between additions.

Alk
Fully dissolve the Soda Ash in RO/DI or distilled water. Slowly add the solution to high flow areas of the tank and avoid directly blasting corals with the concentrated solution. Recipe 1 will Significantly increase PH. Although this is temporary it is important to monitor pH closely during your initial raise and avoid raising the PH more than 0.20. Do not increase alkalinity levels more then 0.5meq/lt or 1.4 dKh per day so be sure to spread the suggested dose out accordingly. If a large increase is required use Recipe 2 as it has less impact on pH. Be sure to monitor pH levels closely while adding the solution

Mag
Fully dissolve the magnesium sulfate and magnesium chloride mix in RO/DI or distilled water. This solution will have some precipitate on the bottom that will dissolve in the tank. Slowly add the solution to high flow areas of the tank and avoid directly blasting corals with the concentrated solution. If necessary spread the dose out to avoid raising magnesium levels more than 100ppm per day. Test Accordingly.

You should be able to divide the recommended dose by the amount you can raise per day to get how many days it will take you to raise to desired levels.

My example would be if the max you can raise any supplement is 100PPM per day and you needed to raise 500PPM to get to desired level it would take you 5 days. Always test before adding supplements so you will know what your usage rate is so you can get it dialed in.

 

But isn't that a lot. it says its what i need to add everyday. with that rate my tank will crash.

 

I think ReefBruh wants to set his initial target numbers now that he is commencing supplementation

but Black Raven is correct
once you have set your targets and achieved them
then you need to test following week, find out how much they have dropped and then you can move onto daily dose for Calcium and nightly dosing for Alk

Steve

 

No, once you get to your desired level you will test everyday to see how much of the cal, alk,and mag is being used up and will adjust your dosage to that.

Example....once you get to 480PPM cal and you are using up 5 PPM per day you would need to adjust your dosage to 153.5 ml; 5.1 fl oz; 30.7 tsp for recipe 1 to maintain the desired 480PPM

 

Will that be per day or divide that by 7

 

You decide based on utilisation Reef Bruh
bearing in mind the

100ppm Mag
25ppm Ca
1 dkh
General principles

if your calcium would drop 40ppm in 1 week - then you could dose twice per week at 20ppm and be fine
if your Alk/ DKH dropped 2 degrees per week, then you could split this over 2 evenings without issue ( probably better to do it between 3 IMO)

As your corals grow, demand gets higher, and then it is better to work out your weekly usage and divide it by 7 IMHO

Steve