My Local Water Table
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My Local Water Table

This is a discussion on My Local Water Table within the Beginner Freshwater Aquarium forums, part of the Freshwater Fish and Aquariums category; --> Im trying to pull my GH and KH off this (when i emailed the city water people asking them about it they didnt know ...

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Old 10-05-2011, 09:53 PM   #1
 
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My Local Water Table

Im trying to pull my GH and KH off this (when i emailed the city water people asking them about it they didnt know what GH and KH were)




my ph has been dropping in my tanks so i would like to stabilize it for obvious reasons.
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Old 10-06-2011, 11:42 AM   #2
 
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The (presumably) total hardness is indicated in the lower chart. It gives a range of 6 to 8, so that is "soft" for our purposes. Ideal for soft water fish.

The pH range is 7.7 to 8 which is high for such fish. However, the bicarbonate hardness (KH or Alkalinity) is not given, but from the general hardness it is probably safe to assume it is also low. The KH is what "stabilizes" pH by acting as a buffer. If the pH in an established tank is lowering, this would support my thinking that the KH is low too. So in time the pH will lower, and combined with the hardness would again be ideal for soft water fish.

What is the pH in your tanks, since you say it is lowering? And what type of fish do you have?

From your PM to me I have assumed this is actually freshwater and not salt, so I've also moved the thread to Freshwater Aquarium.

Byron.
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Old 10-06-2011, 08:14 PM   #3
 
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i wrote this big long post at work today and i guess forgot to submit it.

i have a tank of platys mollies guppies a paradise fish cories a rubber lip pleco

a tank of snails with some cherry barbs and cherry shrimp in it.

and a tank withMelanotaenia boesemani turquoise rainbows and another type of rainbow i dont know the name of , denison barbs, a whiptail a raphael catfish, 10 neons and about 14-15 cories

the reason that all this came up was because the original PH of around 7.5 it now sits around 6.5

i was looking to stabilize it because it fluctuates so much from water changes

if i remember right Dolomite will do this? i read that hardness article about 15 times, and i think that was the word haha

anyway that was why i brought this up.
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Old 10-06-2011, 08:33 PM   #4
 
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Yes, I would increase the water hardness for some of those mentioned fish, particularly the livebearers as they will not do well long-term in acidic or soft water. The easiest and safest way is the natural way; dolomite, crushed marble, crushed coral, are the usual. Dolomite is the best of those because it adds both calcium and magnesium, the two main mineral salts causing hardness ["salts" not to be confused with sodium (table salt), quite another thing]. A small quantity in the filter if possible; or mixed in the substrate, but this takes some experimenting to avoid turning the tank into water so hard it is liquid rock.

The rainbow are slightly basic and medium hard water fish. Melanotaenia boesemani
is said (as it notes in the profile) to not do well in soft water, so this species should be in with the livebearers.

The other fish including tetra, barb, will fare better in 6.5. So you should separate the fish accordingly which would provide ideal conditions for all with none having to "make do."
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Old 10-06-2011, 08:41 PM   #5
 
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where to get my hands on dolomite? i looked at the LFS today and didnt see any
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Old 10-06-2011, 11:15 PM   #6
 
Someone may have a better idea but this came up on google

DOLOMITE 25LB (2PC) - DiscountedPetProducts.Net
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Old 10-07-2011, 01:04 PM   #7
 
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That's the dolomite gravel. A 25 pound bag will last years; perhaps you can sell some of it to the rest of us.
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Old 10-07-2011, 01:50 PM   #8
 
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Quote:
Originally Posted by Byron View Post
That's the dolomite gravel. A 25 pound bag will last years; perhaps you can sell some of it to the rest of us.
it looks as though u have to order it in 2 25lb bags as well?

if so i will gladly ship you some byron.

*i just checked*

you DO have to order two bags! (only 17$ for the actual dolomite)

40$ shipping!!!!!!!!!

ill keep looking. but my above statement still applies byron!

Last edited by patadams66; 10-07-2011 at 01:57 PM..
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Old 10-08-2011, 11:24 AM   #9
 
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Quote:
Originally Posted by patadams66 View Post
it looks as though u have to order it in 2 25lb bags as well?

if so i will gladly ship you some byron.

*i just checked*

you DO have to order two bags! (only 17$ for the actual dolomite)

40$ shipping!!!!!!!!!

ill keep looking. but my above statement still applies byron!
Keep looking, dolomite is available elsewhere I'm sure. It used to be easily available in fish stores, as it was a common substrate for marine tanks, but more recently it is harder to find. In other threads members have found it here and there.
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