How much alk does your tank consume daily?

Waynerock

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29 ml of All For Reef a day (it will drop about 1.2 dkh without). Come on powdered version!
1.5 year old 65 gal mixed reef stuffed full

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josephxsxn

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167gal, (200+ with sump) right now at 59ml of ReefCode B per day.

Just to be clear this is the stock solution that does 1 DKH per ML per Gallon its added to. This turns into about 0.35 DKH per day. Recently added corals so I have been increasing it steadly again.
 

Dr. Jim

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Aren't most of these posts meaningless without including gallons of tank and concentration of alk solution? Perhaps it would be more helpful to write something like:
"I add X dHK daily in a tank with Y gallons" ..... but I know, that's a lot of math! :)
 
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mooputingtong

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Aren't most of these posts meaningless without including gallons of tank and concentration of alk solution? Perhaps it would be more helpful to write something like:
"I add X dHK daily in a tank with Y gallons" ..... but I know, that's a lot of math! :)
im not use to dosing so i never thought about that! lol
 
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mooputingtong

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i have a 115g of water or so. and with all new frags. roughly 30-35 acros. im dosing 48ml BRS 2 part. 4ml 12 times a day.
how long does your brs 2 part last for you? I think red sea liquid is not afforable so i might try the brs 2 part dosing.
 
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mooputingtong

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167gal, (200+ with sump) right now at 59ml of ReefCode B per day.

Just to be clear this is the stock solution that does 1 DKH per ML per Gallon its added to. This turns into about 0.35 DKH per day. Recently added corals so I have been increasing it steadly again.
What a big tank! i have 65 gallon and trying to figure out how much it consumes daily. I added 3ml a day but it actually lowered my dkh so im going double.
 

Ippyroy

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I have a 50 gallon total volume system mixed reef. I currently dose 24.4 mls of soda ash and calcium chloride. I am doing the BRS/TropicMarin balling method so I also dose 48mls of TM PartC. It is controlled by the Trident and DOS.
 

anth

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0.6dkh daily
 

Dr. Jim

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So all of this got me thinking: How do we calculate how much Alk we are adding? (Perhaps somebody with good math skills can check my calculations.)

I'm using Tropic Marin's 3-Part Balling system where Alk = 2800 dKH/L (when 378g of buffer is added to 1 gal water. I wish they would reveal the bicarb:carb ratio).

My TANK VOLUME is about 38 gallons, or 143.8L (38 x 3.785)

I add 20 ml of solution daily, or 0.02 L daily.

2800 dKH/L x 0.02L = 56 dKH
(the amount of dKH added daily)

So, 56dKH diluted in 143.8 L = 56/143.8 = 0.39 dKH (the amount of "increase/day" in my 38 gal tank.

Does this look correct?


(Although this has nothing to do with the calculations above, I will mention that I also add 24 ml of saturated kalkwasser daily which, according to an online calculator, adds an additional 0.06 dKH/day.)

So, I'm adding 0.45 dKH/day to my 170L cube (that holds 143L water). Tank has about 50 small SPS frag and a lot of fish.
 

takitaj

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I'm relieved to see some of these amounts. I'm dosing about 1 dKH / day (76ml) with NO corals yet just to keep a level of 8.0 dKH. It's a mix of 2:1 of BRS (2)sodium bicarbonate to (1)soda ash (to reduce pH swings) at 3/4 cup per 1/2 gallon. Without it my alk fell below 6 dKH before I intervened ( tested with 2 titration kits and hanna dKH checker). It's a fairly new tank, since August 13th.
 

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