Corrective Alkalinity dosing help

[JayFish4004]

My alk took a little drop over the years - my consumption is very low and the tank is sitting at 8dkh.

I want to bring it up to 9dkh which is also where my salt mixes at.

My thought was I was going to use Fritz sodium bicarbonate to add about 1/8th of a teaspoon a day for 4 days. 1/8 teaspoon raises my tank about 0.2dkh.

Does this sound like it would be fine to do? I don’t need to worry about calcium dropping if Im just doing a quick corrective dosing?

 

[Ron Reefman]

Try going to this calculator.

Reef Chemistry Calculator

reef.diesyst.com

I think you will be OK, but the calculator can confirm.

 

[Koh23]

80 grams sodium bucarbonate on 1l rodi water. Mix.

Then, measure alk level.

Using formula

Netto tank vol X (desired alk level - current alk level) X 377.5:1000

Example

100 x 2 x 377.5:1000 = 75.5 ml of solution

So, 100 is tank volume in liters
2 is difference between current and desired alk level

Add daily, test often, correct dosage in ml if needeed....

 

[homer1475]

For a 1 DKH raise, I would just add it all at once.

I personally would just use baking soda. Cheap and easy, and you probably have it in your fridge.

 

[JayFish4004]

For a 1 DKH raise, I would just add it all at once.

I personally would just use baking soda. Cheap and easy, and you probably have it in your fridge.

Im too nervous to go all at once with my fish - I did 1/8 tsp yesterday of sodium bicarbonate (baking soda) which brought it up to 8.2 - did another 1/8 today which should get me to 8.4 by tomorrow. Figure I’ll just do this 3 more days and be good to go.

 

[Koh23]

2 DKH increase daily is perfectly safe.....

 

[Jekyl]

2 DKH increase daily is perfectly safe.....

I believe it's not recommended to go higher than 1.4, might be wrong, listed on BRS site tho

 

[Koh23]

2 dkh daily, established much sooner than BRS.....

 

[JayFish4004]

I believe it's not recommended to go higher than 1.4, might be wrong, listed on BRS site tho

Fritz says never do more than 1dkh in a 24hr period - always better to be safe than sorry. You may get away with it but why take the risk? I just lost half my corals from dropping phosphates too fast, and too fast was the span of 60 days.. so yeah haha