This question pop-ed up my mind during yesterday's rain. I know there has been haze recently and surely the rain water is dirty. I noticed this after the rain when my pond was cloudy, like haze!. Anyway, I just want to know is our Malaysia rain water safe for our ponds? I usually like to open the valve from my settlement chamber to allow rain water to replace my current pond water. BTW, I suppose the North East monsoon rain is cleaner right?
Well, should I continue to allow rain water to replace my pond water when it rains?
Re: [Roger89] How safe is our Malaysian rain water?
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I'm 1/2 a world away from Malaysia, but I think what you are experiencing is fairly common. A good rain after long periods without any do pick up pollutants (mostly dust and carbon base particlulates) and cloud the water. Add to that the microalgae miniblooms rainwater encourages and clouding is almost inevitable. The direction the rain comes in from should also make a difference (as you've already alluded to). Storms that "settle in" tend to wash haze from the air down to the surface. Storms that "blow in" usually tend to purge pollutants ahead of the storm as it approaches. In any case, I always check ph levels after a good storm as rainwater is acidic by nature and nitrogen enriched. If your filters are well aerated and good degassers it will minimize any negative impact by removing nitrogen quickly before algae can begin to consume it and grow rapidly.
Re: [Roger89] How safe is our Malaysian rain water?
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Hi
There is probably nothing wrong with your rainwater but it's just not very good for pond keeping in general. The reason is rainwater is VERY soft so by adding this to your pond you are not buffering up on you mineral and calcium content.
Tap water tends to have dissolved minerals and calcium in it and this is what your pond will need. There are two tests as well as PH you need to keep an eye on one is GH or General Hardness this is the total dissolved mineral content of your water and then there is KH or Carbonate hardness (calcium) without these two important elements you can suffer PH crash and that will stress your fish and can Kill at worst.
You can use crushed shells and the like in part of your filter but there is no sustitute for Hard top up water.
Re: [Roger89] How safe is our Malaysian rain water?
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I think the air quality from Indon forest fire recently could be the cause of the hazy water. If you are concern, check pH value of the water. If the pH is low, I believe it is due to SO2 (acid rain) from the forest smokes wash down. My 2 cents view.
"Talk sense to a fool and he calls you foolish. - Euripides"
Re: [Koi38] How safe is our Malaysian rain water?
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is it good that the rain water dissolves into hard pond water?I think it's a good way to lower the water hardness.is my opinion correct?pls advise me Best regards,
brandon
(This post was edited by brandon on Oct 12, 2006, 7:55 PM)
Re: [Roger89] How safe is our Malaysian rain water?
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Soft water is good for growing some Koi, but not so good for others. Asagi, Shusui, Midorigoi, prefer softer water (kh 100-125, gh 75-100). Gosanke and Utsuri need higher mineral content for proper beni and sumi development and prefer gh +200, kh +150. (see the "Ideal Pond Readings" thread)
(This post was edited by larz1 on Oct 13, 2006, 8:40 PM)
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Re: [Roger89] How safe is our Malaysian rain water?
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