Koi Forum (Nishikigoi - Japanese Koi Fish): KOI Talk: Pond Water Quality: green water help

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green water help

raywrx
Koi Lover

Sep 5, 2006, 7:32 AM

Post #1 of 16 (3087 views)
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green water help	Can't Post

please help my pond has gone green again it started to clear but has gone green again dont know much about ph and nitrates can some explain easy instructions what i have to do next my filters all workin but the water is clean but green

cherrs
raywrx

koiguyoz
Member

Sep 5, 2006, 10:30 AM

Post #2 of 16 (3078 views)
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Re: [raywrx] green water help [In reply to]	Can't Post

In Reply To

the water is clean but green

Has your pond gone green like this pond in the picture or is it green along the walls?

Have you added more fish?

Fed them more?

Whats your geographical location?

Seriously upsizing the filter by large amounts should reduce the chance of green algal blooms. Koi grow, they produce more waste as they grow. It may be possible that your filter can't cope?

raywrx
Koi Lover

Sep 5, 2006, 6:02 PM

Post #3 of 16 (3064 views)
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Re: [koiguyoz] green water help [In reply to]	Can't Post

its the same as the picture i have done nothing differant and i have had the pond for a year now i live in england and when we had our little heat wave and it was little only lasted 2 weeks and everyone thinks its goin to last for ever but as usual back to crapy weather anyway it started then i have cleaned all my filters out i have added treatment for green water i havent added anymore fish nor have i feed them more i dont really know about ph and nitrite i have never done anything like that i use to have a small pond for about 6 years and never had no trouble i built this new pond about a year ago it is 7500x3000x800 and has benn ok all this time
cheers raywrx

zoul
Member

Sep 6, 2006, 6:43 PM

Post #4 of 16 (3031 views)
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Re: [raywrx] green water help [In reply to]	Can't Post

you could add a veggy filter to suck up the nitrates. i have a thingy for it hang on.

Vegetable Filters

Biological filters convert the most toxic elements of decay and fish waste into less harmful compounds.

Two of these, "Nitrates" and "Phosphates" can build up in the water and create problems such as water discolouration, algal growth and greater susceptibility of fish to disease. Chemical filtration can be used to reduce or remove these compounds but this can be expensive, especially in the larger pond. Regular partial (Not more than 10% of total volume) water changes also help. An alternative is construction of a vegetable filter.

These are usually constructed adjacent to the pond and consist of a lined area around 10 inches to 15 inches deep (25 to 38 cm.) filled with gravel. The area of the filter should be as large as possible. Plant out with quick growing, heavy Nitrate feeding plants such as Crassula, Nasturtium Aquaticum and Eleocharis. Water from the biological filter can be fed through the vegetable filter prior to returning to pond or alternatively pump fed directly from the pond.

A great bonus is creation of a bog environment which will enhance the landscaping of the immediate pond area and attract a host of wildlife.

larz1
Koi Kichi

Sep 6, 2006, 9:15 PM

Post #5 of 16 (3023 views)
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Re: [raywrx] green water help [In reply to]	Can't Post

You also might want to consider adding a mesh bag of peat to your filter if possible. It absorbs and neutralizes phosphates which are an essential algae nutrient. If you starve it of its food sources it can't take over Smile

DoctrineEng
Koi Lover

Sep 8, 2006, 12:56 PM

Post #6 of 16 (3002 views)
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Re: [raywrx] green water help [In reply to]	Can't Post

Hi Raywrx,

Have you heard about Modified clay to solve the green water problem due to algae excessive growth? My company in Puchong actually is agent for this product call Phoslock. This is a Australia product. I have done the jar test in my office too, and the result is good. I will show you the picture that i took last two months ago.

BEFORE......

AFTER......

DoctrineEng
Koi Lover

Sep 8, 2006, 2:15 PM

Post #7 of 16 (2994 views)
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Re: [DoctrineEng] green water help [In reply to]	Can't Post

In Reply To

AFTER......

For your case with pond size =7500x3000x800, you will need around 6 Kg of the materials and it will cost about RM 250. This treatment will last 6 months and more.

SK LEE
Environmental Engineer (Water & Environmental)
KIBARAN TERNAMA SDN BHD
No. 17 & 19, Jalan TPP5/13, Taman Perindustrian Puchong,
Seksyen 5, 47100 Puchong, Selangor D.E, Malaysia.
Fax: +603-8061 7033
H/P: +6012-9711812
Email: sklee@saktisuria.com

(This post was edited by DoctrineEng on Sep 8, 2006, 2:19 PM)

koiguyoz
Member

Sep 9, 2006, 12:23 PM

Post #8 of 16 (2976 views)
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Re: [DoctrineEng] green water help [In reply to]	Can't Post

DoctrineEng,

What affect does the "PhosLock" have on water quality in terms of nitrite, ammonia and PH levels (especially after use, after 6, 12 and 24 hours)?

Regards,
Aquaman

larz1
Koi Kichi

Sep 9, 2006, 8:59 PM

Post #9 of 16 (2971 views)
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Re: [DoctrineEng] green water help [In reply to]	Can't Post

I don't know about your particular clay product, but many pond owners here in the US report similar results when using Koi Clay with an high purity Calcium Carbonate content. The lower grade Sodium Carbonate products don't perform as well and tend to cloud the water for a longer period.

DoctrineEng
Koi Lover

Sep 14, 2006, 8:50 AM

Post #10 of 16 (2918 views)
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Re: [koiguyoz] green water help [In reply to]	Can't Post

No, The PHOSLOCK will not affect the Nitrate, Ammonium or pH level. For algae to growth, they need Phosphorus and nitrate. So, without one of them, let for example, Phosphorus, they algae will not growth. Smile

zoul
Member

Sep 15, 2006, 3:57 PM

Post #11 of 16 (2864 views)
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Re: [DoctrineEng] green water help [In reply to]	Can't Post

I take it you need to have bottom drains or a pond vac as you seem to get alot of mulm in the bottom of your jars dead algea tends to rot

DoctrineEng
Koi Lover

Sep 19, 2006, 1:05 PM

Post #12 of 16 (2813 views)
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Re: [zoul] green water help [In reply to]	Can't Post

Oh, for the test, i over use the amount of PHOSLOCK. For a 1 Kg of PHOSLOCK to treat 1m x 1m (1m2), the very fine settlement is not that significant. Plus this layer is very important to act as a layer of protection to keep on binding with Phophorus to prevent algae for further growth. Shocked

betsymax
Koi Lover

Sep 24, 2006, 10:40 PM

Post #13 of 16 (2766 views)
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Re: [DoctrineEng] green water help [In reply to]	Can't Post

hmmm... interesting. is your clay like montmorillionite?

DoctrineEng
Koi Lover

Sep 28, 2006, 10:07 AM

Post #14 of 16 (2705 views)
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Re: [betsymax] green water help [In reply to]	Can't Post

ya. But the colour will be much more lighter. Wink

DoctrineEng
Koi Lover

Sep 28, 2006, 6:07 PM

Post #15 of 16 (2696 views)
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Re: [DoctrineEng] green water help [In reply to]	Can't Post

This is how the modified clay look like (RIGHT), and at the LEFT side, is the 25 Kg bag of PHOSLOCK.
Just for your info Wink

DoctrineEng
Koi Lover

Sep 28, 2006, 6:09 PM

Post #16 of 16 (2694 views)
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Re: [DoctrineEng] green water help [In reply to]	Can't Post

This is another test that we have done. Angelic

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