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PostPosted: Wed Aug 10, 2005 11:04 am 
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Fishkeeper
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Joined: Thu Jul 28, 2005 9:27 am
Posts: 195
Location: Malden, MA
I have very hard water and am wondering if anyone has ever tried to do a planted tank (with C02 injection) in hard water? My water pH, even after sitting for a day or two with a bubbler, still hovers around 8.4.

I am looking to put together a 29 planted tank using high light and a real C02 system, but don't want to waste the money if I can't actually grow anything in it because the water is too hard. I keep trying to work this out in my head but since I'm so lousy with chemistry I thought I would ask if anyone has first had experience with this.

Will the plants use the minerals and/or will the C02 buffer the water enough to where it's a healthy environment for plants and small dither fish like some danios, neons, and endlers?

Thanks.

Amy


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 Post subject: pH, GH, KH
PostPosted: Thu Aug 11, 2005 1:31 am 
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Joined: Thu Jul 28, 2005 4:23 pm
Posts: 246
Location: Pembroke, Ma
Luckily I have soft neutral water. You didn't give a value for your KH but if I'm doing the chemistry right, with a pH of 8.4, I would think it would be low. First off, according to my books there are a lot of plants that will survive very hard water (some anubias, water sprite, hornwart, some echinodorus...). There are however much fewer plants that will fair well in 8.4 pH. If you add CO2 to your water you will create H2CO3. The H2CO3 will disassocite into H+ and HCO3-. The H+ will lower your pH. The HCO3- will combine with the Ca+ in your GH number to make Ca(HCO3)2 your KH number. (John's simplified chemistry - Mg,Na,SO4,CO3,CaCO3 omitted). Adding CO2 should make your water more plant friendly, I think.

If you want I could just bring you some Pembroke water


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PostPosted: Thu Aug 11, 2005 9:51 pm 
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Location: Boston
I thought Val did well in hard water (isn't Val found in Lake Malawi ?)

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Rich
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Part-time fishguy at Uncle Ned's Fish Factory (saturdays)
_______
Species I am currently keeping/breeding include :
Copadichromis borleyi "redfin"
Labidochromis caeruleus yellow labs
Aulonocara sp. "Lwanda"
Ancistrus cf. cirrhosus "Super Red Ancistris"
Xiphophorus montezumae Montezuma Swordtails
_______
(I'm in the middle of resetting and redesigning my fishroom - so things are kinda quiet)


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 Post subject:
PostPosted: Fri Aug 12, 2005 8:23 pm 
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Joined: Thu Aug 11, 2005 3:24 pm
Posts: 7
Location: West Bridgewater
I've personally had very good luck with Java Fern and Java moss in a 40g African Cichlid setup before. I didn't use a CO2 system however, I just did weekly 10% water changes and gave it alot of light, nothing special just a natural sunshine flourescent bulb from Home Depot! They worked out great for me! Oh I was also sure to keep all the cichlids well fed, at first they ( especially some peacocks) went nuts on the fern, like it was a salad bar! :D
RobertV


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 Post subject: hard water plant tank
PostPosted: Sun Aug 21, 2005 8:39 pm 
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Joined: Fri Aug 05, 2005 8:11 am
Posts: 18
Location: brockton
hi
my freashwater 125 gal has hard water and I have never had much trouble with many differnt types of plants. My ph runs 6.8 the alk is 0-20ppm
my gh is 150-200ppm there is 400w of pc over the tank and has co2 system

I also have ran a 155gal african cichlid tank with a ph of 8.2 with about the same amount of light and a alk of 120 ppm and gh of 150ppm things that did good in the tank were java fern, java moss, amazon sword plants,jungle val,
onion val, crystal river val, bolbitis, and crypt wendtii, with no co2 system
but it did get natural sun light for a few hours every day. plants grew great in it.

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PostPosted: Thu May 24, 2007 10:17 am 
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Joined: Thu Feb 15, 2007 12:45 pm
Posts: 11
Location: Maine, Biddeford
Does anyone know any plants that are found in Lake Tanganyika? Not plants that will do well, but plants that naturaly occur there.

The only things I find on-line are "Vallisneria is the only commercially available species, but Anubias and Java Fern are also suitable if the aquariast is willing to bend the biotope rules."

Any help would be appreciated

Terry

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 Post subject:
PostPosted: Thu May 24, 2007 9:28 pm 
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Joined: Tue Aug 09, 2005 2:09 pm
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Location: Medford, MA
I know that hornwort is found in Lake Malawi growing prostrate along the rocks with short meristems. It is probably in Tanganyika as well. There are some Potamageton (sp?) species in Malawi as well - I don't think these specific species are available in the hobby.


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 Post subject:
PostPosted: Thu May 24, 2007 9:32 pm 
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Location: Medford, MA
Hornwort (Ceratophylum sp.) in Malawi:
Image

Potamogeton spp. in Malawi:
Image[/url]


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 Post subject:
PostPosted: Thu May 24, 2007 9:41 pm 
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Joined: Tue Aug 09, 2005 2:09 pm
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Location: Medford, MA
Here's a pic from Tangayika - looks like hornwort:
Image


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 Post subject:
PostPosted: Mon May 28, 2007 12:20 am 
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Location: Boston
looks more like an ad...

Try Anubias. They are from the African Rift Lakes too

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 Post subject:
PostPosted: Tue May 29, 2007 9:28 am 
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Fishkeeper

Joined: Thu Feb 15, 2007 12:45 pm
Posts: 11
Location: Maine, Biddeford
It looks like an ad, but if you go to the site, and find the picture, it will fill in. Thanks for your help. I did find on www.thkrib.com a listing of anubias and where they are found.

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psssst! Hey kid, wanna buy some fish? You won't get hooked if you just buy one...


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 Post subject:
PostPosted: Tue May 29, 2007 10:50 am 
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Joined: Thu Jul 28, 2005 2:05 pm
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Location: Boston
Biotoper wrote:
Here's a pic from Tangayika - looks like hornwort:
Image


lets try that picture this way:

http://www.cichlid-forum.com/photos/art ... rse_02.jpg

_________________
Rich
_______
Part-time fishguy at Uncle Ned's Fish Factory (saturdays)
_______
Species I am currently keeping/breeding include :
Copadichromis borleyi "redfin"
Labidochromis caeruleus yellow labs
Aulonocara sp. "Lwanda"
Ancistrus cf. cirrhosus "Super Red Ancistris"
Xiphophorus montezumae Montezuma Swordtails
_______
(I'm in the middle of resetting and redesigning my fishroom - so things are kinda quiet)


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 Post subject:
PostPosted: Tue May 29, 2007 11:08 am 
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Joined: Thu Jul 28, 2005 2:05 pm
Posts: 1062
Location: Boston
hmmm
That didn't work either.
It looks like that site is locking down their photos so other sites don't steal them (and the bandwidth it costs to host them).

_________________
Rich
_______
Part-time fishguy at Uncle Ned's Fish Factory (saturdays)
_______
Species I am currently keeping/breeding include :
Copadichromis borleyi "redfin"
Labidochromis caeruleus yellow labs
Aulonocara sp. "Lwanda"
Ancistrus cf. cirrhosus "Super Red Ancistris"
Xiphophorus montezumae Montezuma Swordtails
_______
(I'm in the middle of resetting and redesigning my fishroom - so things are kinda quiet)


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 Post subject:
PostPosted: Tue May 29, 2007 11:56 pm 
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Joined: Tue Aug 09, 2005 2:09 pm
Posts: 135
Location: Medford, MA
Oh well, it's wasn't that good a pic plant-wise anyways.


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