Koi Forum (Nishikigoi - Japanese Koi Fish): KOI Talk: Pond Water Quality: Please help me evaluate Water conditions

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Please help me evaluate Water conditions

naivete
Koi Lover

Apr 16, 2008, 1:56 AM

Post #1 of 6 (1020 views)
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Please help me evaluate Water conditions	Can't Post

I have 10 kois in a 1000 gal pond. I have a falls for areation and at the same time use the falls as filters (put in several mats and bio balls and some cylindrical white stuffs). Bought a complete water test kit and follwed the procedure. btw, just cleaned and added new filter mats last week. The result i got was:

pH:7.4
Ammonia: .50
Nitrite: 1.8
Nitrate: 20

What i noticed this pass few days was that my koi especially the ones with white bodies (Tancho yamato, tancho sanke, etc) seems to have redish brown lines and circles around their back. Dont know what they are so i need some help. might have some problem with the water. Hope nothing serious. I don't like my kois to die since i just got them two weeks ago.

thanks in advance

weiwahho
Koi Lover

May 23, 2008, 10:49 PM

Post #2 of 6 (757 views)
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Re: [naivete] Please help me evaluate Water conditions [In reply to]	Can't Post

hi, normally , i only ensure that the Ph of my pond is between 7.0 - 7.8 , other tests i didn't do. However, i add coarse salt (white) in to the pond when i add new kois into my pond, this is to ensure there's salinity in the pond to prevent bacteria infections.... as far as i am concerned, the level of salt is about 3% of total water volume... i.e. water volume 5000L, thus, 3% of salinity level is 150kg of coarse salt... this is my way of taking care of my kois... thanks

sactownkoi
Koi Lover

May 23, 2008, 11:06 PM

Post #3 of 6 (755 views)
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Re: [weiwahho] Please help me evaluate Water conditions [In reply to]	Can't Post

sound like brown blood poison from high nitrite. do a 20-30% water change immediately
and bring salt level slowly up to .3% NOT 3% stop all feeding and do daily water changes
daily but maintance salt at .3% once nitrite drop under .1 do 5-10% water changes daily
to remove salt feed very slow so filter can catch up if nitrite go above .1 stop feeding until
it drop.

(This post was edited by sactownkoi on May 23, 2008, 11:35 PM)

weiwahho
Koi Lover

May 23, 2008, 11:57 PM

Post #4 of 6 (746 views)
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Re: [sactownkoi] Please help me evaluate Water conditions [In reply to]	Can't Post

actually, i have a 12000L koi pond with 30pcs of 2 ft kois in the pond, i really insert salt level at 3% ( i was taught by a sifu from a large kois farm), so far, for the past 2 years i haven't encounter any problems... They told me kois can take up to 8% salinity level, is it true?

sactownkoi
Koi Lover

May 24, 2008, 2:14 AM

Post #5 of 6 (736 views)
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Re: [weiwahho] Please help me evaluate Water conditions [In reply to]	Can't Post

In Reply To

3%ppt or .3% salt same thing and yes they can take up to 8%ppt or .8% salt just for a quick dip.
try not to use salt all the time because parasite will become immune to it and it will not be as
effective when you need it.

accurrent01
Koi Lover

May 24, 2008, 5:55 PM

Post #6 of 6 (699 views)
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Re: [naivete] Please help me evaluate Water conditions [In reply to]	Can't Post

Naivete,

Simply, your kois are under great stress from the water condition in your pond. What you need is an external filter
tank as your make shift filter from the fall is not adequate and may not be functioning.

Refer to this forum on pond construction and you may find topic on external filter quite well cover.

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