Are folks mixing 8 scoops per gallon of Part C without issues? I thought BRS and TM changed their recommendation back to the 4 scoops per gal on the box due to possible precipitation issues.
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I’ve mixed 8 scoops many, many times with no precipitation. It completely dissolves.Are folks mixing 8 scoops per gallon of Part C without issues? I thought BRS and TM changed their recommendation back to the 4 scoops per gal on the box due to possible precipitation issues.
I’ve mixed 8 scoops many, many times with no precipitation. It completely dissolves.
Much clearer then when first posted, thank you.I fixed the first post. It was confusing before, I’ll admit. Especially since I tried adding all the recipes in one thread.
Can you let me know if it’s clear now?
I just weighed 7 scoops. I had to research how to accurately use measuring cups because I normally weigh it out. I assumed 8 scoops = 182g based on the instructions.I weighed out 168g back in 2020, and it was closer to 7 scoops. So, I use 7 scoops per gallon.
Would be good if others could check me on this.
One would think so. Seams that their instructions are off by a 1/2 scoop....I assumed 8 scoops = 182g based on the instructions...
️ Good morningMake this:
Dissolve 3/4 cups Epsom salt (magnesium sulfate heptahydrate) and 7¼ cups magnesium chloride hexahydrate in enough purified fresh water to make one gallon of total volume.
Add 1,074mL of that solution when you finish the other parts.
If you want to make it equal, add 1,074mL of that solution to 20L. Then it will be equal 1:1:1:1
What other parts?No. You aren’t adding 5.7% more. That’s not what I’m trying to say.
To put it another way, you will add x0.0537 as much as the other parts.
️ Good morning
So 1:1:1:1 this is recommended to be a 4 part? Or can I brew the 3rd part to be more concentrated rather than having a 4th part.
What's the initial idea of a one time dose? Also where does the figure of 1074mL come from
What other parts?
I just don't understand sorry.
Hello Miami,It’s a three part. Let’s just opt out of the magnesium step. It’s not worth it since it’s really stumping you up. It’s not that important.
This is for 20L batches as you requested.
Sodium hydroxide (alk) : 1,495g/20L
Calcium chloride dihydrate: 2,642g/20L
Aquaforest Mineral Salt: 1000g/20L
That’s all you will need. The magnesium will take a VERY long time to ever deplete, it may never deplete if you change some water occasionally.
No no i get you now. See when I was sending through the recipe I was reading that the third part needed 7½ cups of Magnesium Chloride and ¾ cups of magnesium sulphate per one gallonIt’s a three part. Let’s just opt out of the magnesium step. It’s not worth it since it’s really stumping you up. It’s not that important.
This is for 20L batches as you requested.
Sodium hydroxide (alk) : 1,495g/20L
Calcium chloride dihydrate: 2,642g/20L
Aquaforest Mineral Salt: 1000g/20L
That’s all you will need. The magnesium will take a VERY long time to ever deplete, it may never deplete if you change some water occasionally.
Yup and I didn't realise it didn't require the full magnesium part. It utilizes the mineral salt mag. I didn't think it was able to fully supliment the mag as much as it does.Hello Miami,
I think I can clarify what he's asking and/or confirm one of my own questions from some time back:
As you say, magnesium isn't depleted quickly, but it is depleted to the point that for every gallon of each of three parts used, you need to add 203ml of that 7-1/4 cups (1,285 grams) of BRS Magnesium Chloride and 1/2 cup (124 grams) magnesium sulfate mixture, correct?
So the question is: why not just add the appropriate amount of dry magnesium chloride and magnesium sulfate to the Part C directly and save on a dosing pump head or remembering to do the manual addition? Will it precipitate in Part C? And if not, then how much in grams of magnesium chloride and magnesium sulfate needs to be added to a gallon (or in his case 20L) of Part C so you don't need to manually add it later?
I did a rough calculation and I think its around 69.6 grams of magnesium chloride and 6.7g of magnesium sulfate need to be added to every gallon of Part C to represent the 203ml of magnesium solution added after every gallon used, but I'm not 100% sure of my calculation here.
How does one determine what demand their tank is? Demand of what?Tropic Marin A & K is a good option. You’d add Trace A to the alkalinity solution and Trace K to the calcium solution:
80mL low demand, 160mL medium demand, or 330mL high demand system.
If you use baking soda/sodium bicarbonate for the alk, use this:
40mL low demand, 80mL medium demand, and 165mL high demand.
I think you've made an error at the beginning. Does 3/4 of a cup of Mg Sulfate really weigh 300g and especially can it be that 7 1/4 cup of mag chloride weighs 2685g?Righeto I believe i've cracked it:
3/4 cups of Mg Sulfate = 300g per gallon / 3.785 = 79.252 grams per litre
7.1/4 cups of magnesium chloride = 2685g per gallon / 3.785 = 709.379 grams per litre.
To make up total for solution 20L*5.4% =1080mls of mag solution
Total calculated to add to Part 3 (with Mineral Salts) for a complete 20L solution
79.252+8% = 85.592 grams of Magnesium Sulfate
709.379+8% = 766.046 grams of Magnesium Chloride
Note: this is only using the below calculator. Weights may differ based on the links accuracy
Note: If making a one gallon solution as the recipe is based off it would be: 204.412 mls of solution per gallon
79.252*20.44121% = 16.2 grams of Magnesium Sulfate per gallon (0.571oz)
709.379*20.44121% = 145.006 grams of Magnesium Chloride per gallon(5.115oz)
@Miami Reef This sound like about what you were meaning
Chemical Weight Calculator
The demand is based on Tropic Marin’s instructions on the bottle.How does one determine what demand their tank is? Demand of what?
Perhaps Miami or Randy might want to chime in?
I think ICP is probably the way to go. Maybe do an ICP, go through a gallon of solution, then do another ICP and adjust.The demand is based on Tropic Marin’s instructions on the bottle.
There’s no perfect way to determine how much to dose trace elements. Judging the tank’s inhabitants and maybe ICP would be adequate...
Making a 1 gallon solution of the magnesium from the first post will have enough solution even after going through 20L of the alk and caThen I'd be left with 1,74ml when the others are empty. I might find the weight of the mg chloride and sulfate and add to the 20l solution.
You will need to remove some water and replace with RO/DI to dilute it back to 35ppt.Good afternoon everyone, I haven't read all the other threads linked in this one but will go back and do so. However, I do have what may be a silly question. How are y'all maintaining salinity at 35ppt when dosing the 3 parts? I assume that by adding the extra sodium chloride that salinity would increase? Thanks in advance. In the meantime I'll go through the linked threads.
Thanks. I assumed as much. Just found it interesting that nobody ever talks about it, but I guess most people already know.You will need to remove some water and replace with RO/DI to dilute it back to 35ppt.