High Gh, Low-moderate Kh - is this ok? - The Planted Tank Forum
 
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post #1 of 6 (permalink) Old 01-11-2006, 03:54 AM Thread Starter
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High Gh, Low-moderate Kh - is this ok?

Just got a few new test kits.
26g flat back hex
Ph~7.8
Ammonia ~.12
NO2 = 0.5
NO3 = 10
Phosphate = 0.5
Kh =4 deg
Gh = 14 deg
1.2 Wpg

The tank has been set up for about 2 weeks.
3 black Neons
2 Glolight Tetras (3rd died a couple days ago)

Anacharis (melting severely)
Amazon Sword
Micro Sword Grass (1 in 15 leaves melting)
Hygrophila corymbosa
Java windelov
Jungle vals (melted except 1-2 new leaves)
Corkscrew vals (totally melted)

I will be adding a Hagen CO2 kit, and an AH supply kit boosting to ~2.7wpg. Also got the Seachem Fundamentals kit today.

Should I be concerned about the Gh being so high?

I would love to get Blue Rams, but may change my mind if I have to constantly chase my water parameters.

I couldn't find a quick easy FAQ section on what is and isn't ok, did I miss it?

Thanks for all the help,
Mike

Working on setting up my 75G after a few year break thanks to a house flood.
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post #2 of 6 (permalink) Old 01-11-2006, 04:08 AM
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Thats pretty darn hard water. Hard on soft water loving tetras. But I don't know what you can do. Maybe RO water is the answer. You shouldn't have any ammonia reading. pH is high too. Peat or CO2 can bring that down. I think you might be a candidate for RO water supplementing your tap. Your KH is fine. But I have super soft water so I have little experience there as I have to add Mg and Calcium to my water to raise my GH... On the bright side, you might be a candidate for some really cool African Cichlids! Also, plants adapt to hard water pretty well, I have read and some like Vals prefer it. So if you can get your pH down, more CO2 will be able to be absorbed in the water column. And I'm sure there are plenty of folks who successfully grow plants in harder water. Pressurized would definately be the way to go in the 125. HTH bob





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Last edited by Betowess; 01-11-2006 at 07:04 AM.
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post #3 of 6 (permalink) Old 01-11-2006, 07:58 PM
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My kh is 8-9 and gh is 15. I have neon tetras and black neons in this water and they don't mind at all. I have had them for about a year in a non co2 tank with a ph of ~7.9. I moved them over to my co2 injected tank and they are doing fine. Same kh and gh, ph is ~6.9. The only plant that i've tried that couldn't grow in my water was a small piece of tonina belum that I got as a freebee. I have corkscrew vals, rotala indica, anacharis, anubias, alternanthera reineckii, amazon sword, some moss, and HC. They all grow very well. Good luck.
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post #4 of 6 (permalink) Old 01-12-2006, 04:23 AM
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Quote:
Originally Posted by casadeskunk_m
Just got a few new test kits.
26g flat back hex
Ph~7.8
Ammonia ~.12
NO2 = 0.5
NO3 = 10
Phosphate = 0.5
Kh =4 deg
Gh = 14 deg
1.2 Wpg

The tank has been set up for about 2 weeks.
Your tank is only 2 weeks old, so it's still cycling. In time your ammonia and NO2 (as I'm sure you're already aware) will go down. Things will settle. As far as your Gh, 14 degrees definitely on the hard side, but not super hard (that would be more like 20 or so). I myself keep cardinal tetras and they do just fine in water that is ~12Gh. Adding the extra light and a carbon source will help your plants out. What are you using for substrate?
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post #5 of 6 (permalink) Old 01-12-2006, 11:38 AM Thread Starter
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thanks for the reply Adam, I have apprx 2.5-3" of eco-complete, and added a little regular aq. gravel on top to lighten up the color of the substrate. The ammonia is already on its way down, and the Nitrite appears to be coming down also (I am keeping a spreadsheet like any good alan-retentive aquariust would ). Trying not to add too much bio-load until things settle in, and i get all the new toys, er I mean, tools installed and running. I did figure that the plant matter that had melted was probably adding to the ammonia at least a little.

Stay tuned - more updates this weekend for sure.

Mike

Working on setting up my 75G after a few year break thanks to a house flood.
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post #6 of 6 (permalink) Old 01-13-2006, 03:32 AM
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Quote:
Originally Posted by casadeskunk_m
Stay tuned - more updates this weekend for sure.

Mike
We'll be waiting to here how things go.
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