Vallisneria Problem (Kinda- Overgrowth) - Page 3 - Tropical Fish Keeping - Aquarium fish care and resources
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post #21 of 23 Old 03-02-2010, 04:03 PM
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Originally Posted by Angel079 View Post
Did I understand you right Byron? That Vallis grows worst in soft water then hard water? Because my exp is the complete opposite, while they grew nicely before for me with the harder set ups, now here in the new soft water home that are REALLY exploding.

How far do you think over what time frame would it lower the parameters? I'd have to find my notes but this tank was set up early Nov last year and after the initial cycle this tank has been pH 7.6 and KH5 since then (with a tap water of KH1 and pH 6.8 )
I know of others locally (Vancouver) who say they have success with Vallisneria in our soft water, but years ago I found it grew much better in my livebearer tank than in my Amazon tank. In the alkaline tank it was deep green, lush, runners all over; not in the other. Just my experience.

I've no data on the effect on pH, it is only a surmise. As I mentioned, I suspect it would be insignificant. If Lee can find the article I would be interested in reading it. Diana Walstad has several references in her book to articles on photosynthetic carbon assimilation, but all I found online were abstracts and I've not had time to try and locate the periodicals and thesis through libraries.

Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If you’re going to take it under your wing then you’re responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
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post #22 of 23 Old 03-02-2010, 06:21 PM Thread Starter
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Originally Posted by Byron View Post
I know of others locally (Vancouver) who say they have success with Vallisneria in our soft water, but years ago I found it grew much better in my livebearer tank than in my Amazon tank. In the alkaline tank it was deep green, lush, runners all over; not in the other. Just my experience.
Hmmm interesting!!! I'm assuming all other parameters been the same (Lights, Using the ferts you always have etc etc)?
Just really trying to see what other "trigger" point there is.... Or what Vallis type did you have do you remember?

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If Lee can find the article I would be interested in reading it.
Yes please if anyone can post the article here I'd be interested too.
As I said I never had a measurable pH difference with this plant but as always one must look at the overall pictures and all influencing factors there so maybe I just simply had something within the set ups that keep it stable and/ or need a test kit that reads down to 0.00XX

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post #23 of 23 Old 03-03-2010, 01:39 AM
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Wish I could find the article. Do recall it was while searching planted tank forums and article was translated from german to english. As mentioned,, It was suggested that the aquarium would have to be near choked with this particular plant to present the scenario described.
I recall I was searching for some fast growing plants that would do well in my water (moderatley hard) ,, and that also do well with moderate light. Things kinda took off from there ,as so often they do while I am researching.
I shall note the place should I once again find it.

The most important medication in your fish medicine cabinet is.. Clean water.
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