jungle val not doing well... - Page 2 - Tropical Fish Keeping - Aquarium fish care and resources
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post #11 of 26 Old 09-29-2012, 06:35 PM
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This has mostly been said already, but I'll just add from my own experience with this plant. The harder the water the better for all Vallisneria. Also, light has to be good (you should be OK on this, not high but OK). And Excel is a toxic chemical that kills so much i would never add it to a fish tank regardless, but it can affect some plants like Vallisneria. This situation here could be a combination of too little hard minerals (these have to come mainly from the tap water at water changes since most fertilizer preparations have minimal hard minerals), moderate light and the Excel all working together against the Vallisneria.

Byron.

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 #12 of 26 Old 10-02-2012, 10:14 AM Thread Starter
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Ok I took the vals (assuming that's what this is) out yesterday, trimmed the decayed and dying leaves and a bit of the roots as well. The root looked good, BTW. So replanted them making sure they are not buried deep. I shall hold off on the Excel. I know my tap water is on the softer side, but I don't want to do anything to increase the hardness. I added couple of Osmocote gel caps near the roots. The plant should get better lighting now than before. I will dose Flourish Comp about twice a week. Hopefully, this will my vals. I have added some pics - first 2 showing the black lining on the leaves that I mentioned before, third one after trimming and the 4th after replanting..... Let me know your thoughts. Thanks a bunch. :)
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post #13 of 26 Old 10-02-2012, 11:40 AM
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Those look like Jungle Vallisneria to me. They are looking ok to me in the last pic. Will just add that Vallisneria are heavy root feeders so just make sure that you have enough tablets in there for them and replaces then when it is time. 1 capsule per every 2 plants is generally how I had my tablets. Mine grew great and got very huge!! Though my water is a little harder then yours. Lets use know how it goes.

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post #14 of 26 Old 10-02-2012, 11:42 AM
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Those plants don't look bad, but if they have been slowly failing this is not likely to change. The only question that remains is the hard mineral. Do you know the GH of the tap water? I'm not familiar with the substrate fertilizer you are using so i don't know how much calcium and magnesium it may contain. The amount in aquarium fertilizers like Flourish is minimal, because the manufacturer assumes most of us will have these minerals in our tap water. I have near-zero GH so I have to add calcium and magnesium in addition to Flourish liquid and substrate tabs. I can go into this more when I know the GH.

Byron.

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 #15 of 26 Old 10-02-2012, 01:04 PM Thread Starter
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Thank you both for your thoughts. Will get an updated GH and report back. Byron, you're correct that things may not change much if I don't change the hardness, which believe is the main culprit. Osmocote Plus is regular plant fertilizing pellet. I have a colleague who's had great success with it in aquarium. And my other root feeders have been doing very well....
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post #16 of 26 Old 10-02-2012, 05:54 PM
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Quote:
Originally Posted by rg0p View Post
Thank you both for your thoughts. Will get an updated GH and report back. Byron, you're correct that things may not change much if I don't change the hardness, which believe is the main culprit. Osmocote Plus is regular plant fertilizing pellet. I have a colleague who's had great success with it in aquarium. And my other root feeders have been doing very well....
According to this fact sheet on Osmocote Plus, it does contain calcim and magnesium, but I've no way to determine just how much with the figures they give.
http://everris.us.com/sites/default/...0580_Eng_5.pdf

When we know the GH we will have a better handle on this.

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 #17 of 26 Old 10-02-2012, 09:13 PM
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I'm going to chime in. I had Vals in my tank with RO water, and the water was soft with low ph of 6.3 and the vals did great - had sister growths constantly, growing all over the walls of the tank. The lfs also had them in softer water, as I bought them for my German Rams. I moved them to my other tank, which has a ph of about 7.4 and a GH of 10.

They barely survive. The are not propogating, and look bleak, which makes me wonder about them doing well in harder water. I will add root tabs reading through this thread, but I do dose with comprehensive, and never had root tabs for them in the low ph tank with the RO water.

Just my 2 cents. I always figured they must prefer softer water.

Gwen

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post #18 of 26 Old 10-02-2012, 09:49 PM
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My water runs about 12 GH with a ph of 7.4. I have read that they are heavy root feeders and made sure to have root tablets for but they need liquid fertilizer too. There was period of time that I didn't dose liquid fertilizer and they did poorly even with root tablets but when I dosed regularly they did great. They would grow taller then me and put out many daughter plants. So maybe it just depends what kinda water they got use to.
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post #19 of 26 Old 10-03-2012, 11:10 AM
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Vallisneria thrives in the hard water of the rift lakes in Africa, and they can use bicarbonates as a source of carbon if CO2 is minimal, and some sources suggest they prefer bicarbonates. So I don't think there is much doubt but that they do best in harder water rather than soft.

But, as always, there are other factors at work. Light has to be good, and other nutrients must be present. In soft water, carbon would perhaps be an issue.

And, as i remarked previously, the plants in the photios look pretty good, and only the owner will know the extent of their decline.

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 #20 of 26 Old 10-03-2012, 09:09 PM Thread Starter
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Quote:
Originally Posted by Byron View Post
And, as i remarked previously, the plants in the photios look pretty good, and only the owner will know the extent of their decline.
I wouldn't say it's declining, but not flourishing rather. I mean it's mostly old leaves....
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