>Battlelance, just our of curiosity what size tank do you have that you use
>this recipe on?. I took a look at it and unless I read it wrong I would have
>to add 13 tablespoons of Epsom salts, about 13 teaspoons of baking soda and
>13 teaspoons of marine salt to my 66 gallon tank to get my PH and hardness
>up to about my current levels.
I use it on an 80 gallon tank. I would have to go dig up my original
calculations to find out how much I would need to add to get it to
where it is now (pH 8.0, KH ~200), because once I got it up to this
level, you just have to maintain it based on the amount of water you
remove from the tank. I do know it was nowhere near your numbers. Did
you actually take a bucket of dechlorinated water and see how many
tsp/tbsp's you would have to add to reach your desired levels? It's
not something you could just guess at.
I'm probably being too picky, since my original pH is ~7.5, and the
africans should handle this just fine, but my KH and GH are > 10, and
I really wanted to bring that KH up. I also added crushed coral to the
substrate and in the filter, and I'm currently monitoring the results
to see if I can get a higher pH and KH, without altering the formula I
use for the rift lake buffer recipe.
And hey, it's cheaper than the "rift lake in a bottle" you can buy
from the LFS :)
Oh, I also wanted to mention that it takes time for the baking soda
and epsom salts to work. I was a tad hasty when I first did my
calculations, and my pH shot up in the tank causing my yellow labs to
start scratching, and they eventually both died. <sniff>
Rick - 07 Mar 2004 17:02 GMT
> >Battlelance, just our of curiosity what size tank do you have that you use
> >this recipe on?. I took a look at it and unless I read it wrong I would have
[quoted text clipped - 25 lines]
> calculations, and my pH shot up in the tank causing my yellow labs to
> start scratching, and they eventually both died. <sniff>
In my tank I initially added one tablespoon of baking soda which brought up
my PH but I want my KH for my Mbunas's to be between 14-17 so I added
another couple of teaspoons. I did some research and using the recipe as
described on that site for my tank would give me an initial PH of 8.2 and a
KH of 322 or something akin to liquid rock. Using my formula would give me
a PH of 8.2 and a KH of 14 to 15, adding two more teaspoons of baking soda
would keep my PH at 8.2 but raise my KH to 17-18 range which is perfect for
me. Adding Epsom salts and or marine salts in MHO is not really necessary in
a African tank although it does add some minerals and trace elements that
some recommend. Research on waters of Lake Malawi will reveal that the PH
range is 7.8-8.0 with very limited number of elements so adding marine salt
introduces a wide range of elements which are not found in the natural
biotope of the fish. Marine salt of course is not a buffering additive
however it does contain carbonates which in my particular example would
raise my PH from 8.2 to 8.4. For Africans from Lake Malawi , 8.2 would IMO
be the upper limit of where one should be. Marine water has a ph of 8.4 and
is already out of the range of Africans. Anyway, nothing wrong with a
healthy discussion as everyone benefits in the end as it should prompt those
interested in doing more research.
Regards
Rick