JSHUM
Koi Lover
Jun 14, 2001, 4:13 AM
Post #1 of 5
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Clear Water Turning Green
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Hi there everybody,
My pond is about 3 months' old and the water is being filtered through a sand filter, and I've 12 small koi in it.
I clean the filter once in 2 weeks to ensure good water flow. I always use the pond water in cleaning the filter so as not to kill all the bateria that might have grown in the filter. I think I've been pretty lucky that I've been having crystal clear water since day one. I often test the water for amonia and so far there has not been any trace of it. Although I've yet to test the water for things like nitrite, nitrate or things like that, I guess my water is OK as I do see noticeble growth in all my fishes in this short span of time.
Yesterday, I did a 30% change of water and washed the filter in the morning. There was heavy rain in the afternoon. I noticed that the water truned slightly white after the rain. Today I notice that the water has become slightly green but still clear.
I've never experience this before, can anyone tell me if this is normal? Is there anything I must do?
Any help will be much appreciated.
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