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Old 19-12-2006, 03:35 PM   #1
anzp85
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Default ideal kH for planted...

isit around 4-5?
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Old 19-12-2006, 03:39 PM   #2
the_r0ck
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I always had the notion that having a KH of 4 is ideal but recently I was told it doesn't really matter.

But I always like to err on the side of caution since with CO2 injections I prefer to have around a dKH of 4 to prevent pH swings. I had unusually low KH for one of my tanks and the inhabitants were wiped out due to the pH spikes.

-Calvin
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Old 19-12-2006, 10:22 PM   #3
biweilow
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how to increase/ decrease kH?
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Old 20-12-2006, 12:11 AM   #4
anzp85
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means kh is a must to increase abit la...
so ph will be buffered..
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Old 20-12-2006, 12:17 AM   #5
Shad0w
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Quote:
Originally Posted by biweilow View Post
how to increase/ decrease kH?
to increase add baking soda
to decrease add reverse osmosis water (I think )
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Old 20-12-2006, 12:24 AM   #6
Shad0w
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Quote:
Originally Posted by anzp85 View Post
isit around 4-5?
GH & KH RANGE - AQUARIUM LIFE
0-3 (0-50 ppm) discus, arowanas, elephantnose, neons, cardinals, live plants

3-6 (50-100 ppm) Most tropical fish including angelfish, cichlids, tetras, botia, live plants

6-11 (100-200 ppm) Most tropical fish including swordtails, guppies, mollies, goldfish

11-22 (200-400 ppm) Rift lake cichlids, goldfish, brackish water fish


I got the above information from net, can't remember where though
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Old 20-12-2006, 10:36 PM   #7
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Quote:
Originally Posted by Shad0w View Post
to increase add baking soda
to decrease add reverse osmosis water (I think )
won't baking soda affect the pH also?

reverse osmosis water means NEWater, right?
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Old 20-12-2006, 11:37 PM   #8
anzp85
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is there a negative value for Kh...
i noe tap water is kh 0...
if i not wrong la..
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Old 21-12-2006, 12:36 PM   #9
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As far as I know, KH is either a value or just 0.

Its always good to have some buffering capabilities.

-Calvin
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Old 21-12-2006, 12:43 PM   #10
carlfsk
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Quote:
Originally Posted by biweilow View Post
won't baking soda affect the pH also?

reverse osmosis water means NEWater, right?
Yup, increasng KH will also increase the PH, macam they go hand-in-hand. That's how we can use the co2 chart mah. We inject CO2 to bring the PH down.

As for RO water, sama the Newwater bah. Should be distilled water. Havn't got chance to try a RO unit yet.
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