Tropical Fish Keeping - Aquarium fish care and resources

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loveallife 05-26-2009 05:17 PM

Ph help?
hey guys, I have recently been having problems with my Ph. in the guppy tank it is much to low, about 6.8 and in the bettas tanks it is too high (around 7.4)..... Cherry barbs have it perfect tho! lol! anywa, does anyone know how I can permanently raise/lower ph? any help at all would be awesome! thanks!:-D

Lupin 05-26-2009 06:10 PM

What are your KH and GH? pH is not an issue. You need to look into your KH and adjust from there as much as necessary. Baking soda, calcium chloride (liquid calcium by Kent), calcium carbonate such as corals and then plaster of Paris pucks are used to elevate the KH.

loveallife 05-26-2009 07:01 PM

thanks, and how to lower it? I am not familier with GH

Lupin 05-26-2009 10:04 PM


Originally Posted by loveallife (Post 199070)
thanks, and how to lower it? I am not familier with GH

Lower the pH? I wouldn't worry about it. If your KH is lower than 3, then you need to add baking soda to elevate it thus stabilizing the pH.

iamntbatman 05-26-2009 11:19 PM

Well, a neutral pH isn't a perfect pH. It's just a pH. Some fish prefer more acidic or more alkaline water. Fortunately, most fish available in the aquarium trade are adaptable to a fairly wide range of pH values. Your guppies and beta should be just fine in those pH's. The hardness (GH and KH) that Lupin refers to reflect your water's buffering capacity. If you have extremely soft water, the pH can fluctuate very easily. Unstable pH values are much more dangerous to fish than stable ones, so keeping a safe buffering level is a good idea. As Lupin said, if you have extremely soft water (KH of less than 3) then you should try to make it a bit harder in order to prevent deadly pH swings. In most cases, city water tends to run a bit hard so you probably don't have anything to worry about. Better safe than sorry, though, so getting your hardness tested is a good idea.

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