Using baking soda(near disaster)

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Bderick67

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MFK Member
Aug 18, 2006
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Well here is my exprience with using Sodium Bicarbonate (baking soda) in an atempt to raise my Kh. The info I went by was posted in the following thread;

http://www.monsterfishkeepers.com/forums/showthread.php?t=48379&page=2

-The tank is a 85 gallon, with a w/d trickle fitler rated for a 150g tank and has a 15g sump.
-The inhabtants are 8x 4-5" discus, 4x 3-4"clown loaches, 18x cardinal tetras and a variety of 4 small algae eater types.
-The tank is also planted with a fermenting yeast type Co2 producer.
-I do a weekly water change of 35-40 gallons with a mix of R/O water and treated tap water. At a ratio of either 7 to 3 gives me 7.0 Ph or 4 to 1 gives me 6.8 Ph
-Water params have been stable for the past 3-4 months, I test before and aftre w/c. My testing is done with Aquarium Pharmaceuticals test kit and ocassionally verfied with Jungle brand quick dip strips

amonia -0
nitrites -0
nitrates -below 10 before and below 5 after w/c
Ph -6.2 to 6.4 before and 6.4 to 6.8 after
Gh -4 German degrees about 80ppm
Kh -0 German degrees about 0 ppm

My concern is the varience in the Ph cause by the zero Kh. Fear of a Ph spike.


For my water most recent water change my Ph was 6.2 so I decided to go with the 7 to3 ratio to add 7.0 water(my target Ph is 6.6), I decided to try to increase my Kh by adding sodium bicarbonate. The recommended dosage was;

"Four teaspoon (about 24 grams) of sodium bicarbonate (NaHCO3) per
gallon of water will increase KH by 4 degrees and will not increase
general hardness"

So to be safe I went with 8 teaspoons per 5 gallons, less than 1/4 of the recommended dosage.

The result; All the water params stayed unchanged except;

-Kh increased to 10 German degrees abot 180 ppm
-And my worst fear my Ph spiked from 6.2 tp 7.6

Luckly all my fish survived and show no signs of stress, They are all acting like nothing even changed. I figure it is best to leave the Ph at the level it is now and decrease slowly over the next few weeks.

Ok all, I welcome all comments, questions and flames.

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Howdy,

I am glad to hear your fish made it. Too bad you didn't research the topic by performing a search of this forum. To the very same topic, I gave a warning for exactly what happened to you:

http://www.monsterfishkeepers.com/forums/showthread.php?t=47306

I am sorry I didn't read your thread in time, or I would have warned you ...

HarleyK
 
Bderick67;626890; said:
Well here is my exprience with using Sodium Bicarbonate (baking soda) in an atempt to raise my Kh. The info I went by was posted in the following thread;

http://www.monsterfishkeepers.com/forums/showthread.php?t=48379&page=2

-The tank is a 85 gallon, with a w/d trickle fitler rated for a 150g tank and has a 15g sump.
-The inhabtants are 8x 4-5" discus, 4x 3-4"clown loaches, 18x cardinal tetras and a variety of 4 small algae eater types.
-The tank is also planted with a fermenting yeast type Co2 producer.
-I do a weekly water change of 35-40 gallons with a mix of R/O water and treated tap water. At a ratio of either 7 to 3 gives me 7.0 Ph or 4 to 1 gives me 6.8 Ph
-Water params have been stable for the past 3-4 months, I test before and aftre w/c. My testing is done with Aquarium Pharmaceuticals test kit and ocassionally verfied with Jungle brand quick dip strips

amonia -0
nitrites -0
nitrates -below 10 before and below 5 after w/c
Ph -6.2 to 6.4 before and 6.4 to 6.8 after
Gh -4 German degrees about 80ppm
Kh -0 German degrees about 0 ppm

My concern is the varience in the Ph cause by the zero Kh. Fear of a Ph spike.


For my water most recent water change my Ph was 6.2 so I decided to go with the 7 to3 ratio to add 7.0 water(my target Ph is 6.6), I decided to try to increase my Kh by adding sodium bicarbonate. The recommended dosage was;

"Four teaspoon (about 24 grams) of sodium bicarbonate (NaHCO3) per
gallon of water will increase KH by 4 degrees and will not increase
general hardness"

So to be safe I went with 8 teaspoons per 5 gallons, less than 1/4 of the recommended dosage.

The result; All the water params stayed unchanged except;

-Kh increased to 10 German degrees abot 180 ppm
-And my worst fear my Ph spiked from 6.2 tp 7.6

Luckly all my fish survived and show no signs of stress, They are all acting like nothing even changed. I figure it is best to leave the Ph at the level it is now and decrease slowly over the next few weeks.

Ok all, I welcome all comments, questions and flames.


bderick67,

Dr Joe here...

Sorry, off line most of today.

Trying to figure out what happened.

Did you do a W/C before you added the S.B.

What did you mix the Sodium Bicarbonate with?

Or was it added dry?

Was it added to the sump or was it put directly in the tank?

What kind of S.B. (arm & hammer)?

How much co2 are you running?

I've run this many times over the years, so it's important to figure out what went wrong here.

Keep me posted.

Thanks,

DR Joe

.
 
i am very happy yuor fish made it.....but many would not want to her my full comment
 
Thanks Dr. Joe
The answer your questions;

Did you do a W/C before you added the S.B.
- The S.B. was added during the water change

What did you mix the Sodium Bicarbonate with?
- 4 teaspoons mixed with 3.5 gallons of R/O water and 1.5 gallons of treated tap water

Or was it added dry?
- S.B. was added to 5 gallon bucket, my R/O water is siphoned into the bucket from holding tank and the treated tap water is poured in from 1/2 gallon picture. with all the pouring and incoming water the S.B. seemed to disolve quite well.

Was it added to the sump or was it put directly in the tank?
- the water is pumped directly into the tank 5 gallons at a time. 35 gallons total. Entire w/c refill process take about 20 min. (probably why the fish survived, not an instant spike)

What kind of S.B. (arm & hammer)?
-yes it was Arm and hammer

How much co2 are you running?
-Co2 is one hagan brand, with uses aprox. 1/2 cup sugar with 1 1/2 cups water and yeast this was refilled about 1 week ago.

My big mistake was not doing a Ph and Kh tests on the 5 gallon mix because right now this is an unkown factor (I will mix a batch tomorrow and test) over the last 3-4 months the ratio of 3.5 gallons of R/O to 1.5 gallons of tap has always given me a Ph of 7.0. and a Gkh of 2. 35-40 gallons of this mix would raise my Ph from 6.2 to 6.4 but my Gkh would remain at 0.
 
HarleyK;627306; said:
Howdy,

I am glad to hear your fish made it. Too bad you didn't research the topic by performing a search of this forum. To the very same topic, I gave a warning for exactly what happened to you:

http://www.monsterfishkeepers.com/forums/showthread.php?t=47306

I am sorry I didn't read your thread in time, or I would have warned you ...

HarleyK

Well I did read the tread you are refering to before I atempted this. the S.B. was fully disolve but the lack of a Ph test on my part is making my foot sore(from kickin myself in the behind). I guess at the time I figured since I was adding less than 1/8 the recommended dose I would be Ok.

As far as being sorry don't be I did the post after it had happened.
 
FishSkins;627397; said:
i am very happy yuor fish made it.....but many would not want to her my full comment

Alot can be learned from well deserved criticism, so Its my post and I would like to here your full (but not foul) comment.
 
dr_sudz;627379; said:
Its for this reason that I have a personal rule on my tanks. Chemistry is to be looked at but not messed with.

So what do you do just add water a hope for the best?
 
i just feel where you already had a great PH to start and your discus are awesome...there was no reason to . to do this at all.....i don't feel ur KH needed to raise
yet i am not the discus master Jack is.........your baby's are beautiful
 
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