ouch
Koi Lover
May 29, 2008, 9:44 AM
Post #3 of 6
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Re: [hockhan] Can I change water 100% of my koi pond?
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I noticed that you didn't say anything about a filter, which is the heart of any pond. Without a filter, do water changes and cleaning the pond will only very temporarily solve any issues. So the first order of business for a healthy pond is a large efficient filter.
The water quality is terribly bad and I can not see the bottom through.
Just because the water isn't crystal clear doesn't mean the water quality is terrible. Have you used a test kit to determine the pH, ammonia, KH, GH, nitrite, nitrate, 02, etc? If you haven't, then you don't know what the water quality is like.
There is gummy stuff at the bottom (about 1' thick) and top water is green.
I think I should change the water 100%, but it will not be good for my kois and gold fish if I put tap water there.
Would you give me some advices hoiw I can change the water?
I hope you meant 1" thick, not 1'?
Usually it is not a good idea to do a 100% water change, but in your case with a large layer of muck at the bottom, I would drain the pond, clean it, and start over. Of course, if you don't have a filter yet, then drain the pond and set up the filter at the same time. Again, you need to get rid of that muck at the bottom initially, but without a filter you will have the same problem again and again.
You can also use a pond vac to clean the bottom, and then do a few small water changes, but if you don't have access to a pond vac then this won't work.
To do a water change, have a holding tank (the bigger the better) ready, with a pump vigorously aerating the water in the tank. If your pond water has no ammonia and a decent pH, you can fill the holding tank using the pond water. Otherwise use tap water and a dechlor and ammonia binder (such as amquel).
Drain the pond, clean out the muck, and then refill it with tap water again using dechlor.
Your stocking density is low which is good.
Once again, I can't stress how important it is to set up a filter if you haven't done so already.
The poster above mentioned using a UV light to get rid of the algae, and I have seen this suggestion a lot on this board. This method does work, but it only masks the problem, which is too many nitrates produced from muck decaying in the pond. Thus, to truly solve the single celled algae issue, you must have an efficient filter.
(This post was edited by ouch on May 29, 2008, 9:46 AM)
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Can I change water 100% of my koi pond?
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