Buffering capacity question

[VeeFour]

I added this question in another topic but I think it was overlooked for the main question, so I'm asking it again here.

I use the same 5-in-1 testing strips that was mentioned in another thread.
THe tests are for PH, Nitrite, nitrate, TH, and "Buffering capcity". My test reads that my tank is low on the "Buffering capacity", and it tells me to add "Buffer up". I can't find anything in the LFS that mentions anything about "Buffer". What should I be looking for, and what does the "buffering capacity" of the water do in the first place.
Thanks

 

[edd_hardy]

Buffering capacity refers to your waters ability to resist changes in pH level. Waters with low buffering capacity are very susceptible to changes in pH. Waters with high buffering capacity are able to resist major shifts in pH.

Alkalinity is a measure of this (n.b. alkalinity does not refer to pH) and as far as I remember measures the levels of the bases bicarbonate (HCO3-), and carbonate (CO32-).

 

[VeeFour]

So what can I do to increase the buffering capacity of my tank?

 

[tstenback]

If your fish are doing fine i would let sleeping dogs lie. This is not a simple thing and if not done properly can cause a great deal of instability in your tank and may even cause a complete crash. So unless your fish are doing poorly or you have special needs such as breeding then i would just monitor the situation and not mess with the water. If you must then here is a link HTH

 

[VeeFour]

thanks. I'm just now learning about cycling my tank (and trying to save my fish) so I don't think I'll be attempting to breed anytime soon.
Thanks for the info!