How can I raise pH?

[Nabbig2]

I have a tetratest ph kit, and a small bottle for raising ph, which says to add 4 drops per gallon to raise the pH. I have added many many drops, but according to my test kit, my pH is still about 5.5, which is too acidic because I want to get guppies.

I'm thinking of getting a new test kit and pH up, (I've had these ones for a long time now), so any recommendations? Thanks.

 

[ziggy2]

Get a new kit first. Test your tap water also. Get rid of the chemicals. You can raise the Ph with crused coral or crushed oyster shell. It is easier to manage.

 

[badfish]

You may want to test your kh as well ,don't use chemicals you don't want fluctuation try oyster or coral or lime stone.

 

[Pufferpunk]

Definately post the pH of your tap water here.

 

[Mystix212]

Guppies do fine in a wide range of pH levels. Limestone rocks, crushed coral and bi carb soda all raise the pH. Although bicarb soda will only have a temporary effect.

 

[Nabbig2]

Definately post the pH of your tap water here.

The pH of my tap water is atleast 8; it is very high, and is a dark purple when I test it.

Do they sell crushed coral at the lfs? Will the coral dissolve?

Also, my cousin brought me a few shells from florida. Could I use one, and how should I rinse it? Thanks.

 

[Oddball]

Any buffering agent, such as limestone (texas holey rock), crushed coral, and aragonite will dissolve in acidic conditions. That's how acidic water becomes buffered. All 3 are normally carried in most lfs. Aragonite should be replaced/recharged about every 2 years for stable buffering. Block limestone will last almost indefinitely.

Your tap water is already very alkaline. So, something is making your water acidic. Slightly 'green' driftwood, irregular water changes/gravel washes, and many types of lava rock will lower your tank's pH. Remove these items if you have any and schedule regular weekly water changes/gravel washes.

 

[ShadowBass]

There are actually types of lava rock that will lower your pH?

I'm glad I saw that, I had no idea.

 

[Pufferpunk]

If your tap is 8, then why not just do more, larger WC?