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Home: KOI Talk: Pond Water Quality:
Green water - TT or UV or both?

 





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mpagri
Koi Lover

Jun 28, 2005, 5:00 AM

Post #26 of 51 (1479 views)
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Re: [KangaKoi] Green water - TT or UV or both? [In reply to] Can't Post
Well in an attempt to bring this thread back around to the start:

My 36W UV has been running for 5 days now. The water is still not crystal clear but I can definitly see farther down than I could before. I hope it wont stop here and will eventually get to crystal. A few more days i figure.


Frosty
Koi Lover

Jun 28, 2005, 6:06 AM

Post #27 of 51 (1470 views)
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Re: [mpagri] Green water - TT or UV or both? [In reply to] Can't Post
Dear Mpagri Wink, we didn't intend to hijack your thread, but to cover in more depth the reason you should heed advice to be patient Tongue.

Take a leaf out of the book your Koi read Angelic

PS: The first pic is of a young Koi I saw and fell in love with, which is waaaaaay below the size I would normally buy. After a Heron attack, he took to hiding in the filamentateous algae in the shallows, so just as well it was there! Oooops, I guess that's quite natural Crazy
Long-Time Koi Lover

(This post was edited by Frosty on Jun 28, 2005, 6:08 AM)
Attachments: 1 may, 2005 Koi007.jpg (54.5 KB)
  1 may, 2005 Koi001.jpg (16.8 KB)


Koi38
Senior Member


Jun 28, 2005, 7:13 AM

Post #28 of 51 (1462 views)
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Re: [mpagri] Green water - TT or UV or both? [In reply to] Can't Post
In Reply To
Well in an attempt to bring this thread back around to the start:

My 36W UV has been running for 5 days now. The water is still not crystal clear but I can definitly see farther down than I could before. I hope it wont stop here and will eventually get to crystal. A few more days i figure.
Hi mpagriSmile

In other words you can see some improvementsCool. Give it a few more days. Relax and patience my friendWink You have to remember also that UV alone can't guarantee a crystal clear water without the help of your filters.

rgds,
Jon

"DuKu Friendly"
_____________________________________
"No one is ever too old to know better"

http://s3.photobucket.com/albums/y63/Koi38/


KangaKoi
Koi Lover

Jun 28, 2005, 10:30 AM

Post #29 of 51 (1460 views)
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Re: [mpagri] Green water - TT or UV or both? [In reply to] Can't Post
I am sorry mpagri, I got side tracked there with your thread. just echo the point made by Frosty and Koi38, your water will clearing up soon. Enjoy your kois.

PS: Frosty, i think we should start another thread on the subject of 'Pounding' filtering. If you agreed and do please buzz me.


mpagri
Koi Lover

Jun 28, 2005, 10:57 AM

Post #30 of 51 (1458 views)
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Re: [KangaKoi] Green water - TT or UV or both? [In reply to] Can't Post
i didnt mind the hijack at all it was very interesting information. and definitly patience is a huge virtue in the koi hobby. i just wanted to update you all on my status. hopefully a few more days. i have been filtering the uv output thru filter fool and the wool is all green and looks like theres more algea than wool now.


koiguyoz
Member


Jun 29, 2005, 7:34 PM

Post #31 of 51 (1394 views)
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Re: [mpagri] Green water - TT or UV or both? [In reply to] Can't Post
Take some progress photos...that'll do the trick!

Patience...if no patience...build giant trickle tower...patience comes down to 7 days Wink wait.


Sbostian
Koi Lover

Jul 21, 2005, 7:30 AM

Post #32 of 51 (1299 views)
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Re: [mpagri] Green water - TT or UV or both? [In reply to] Can't Post
I have a pond with around 1500 gal. and the water is green and has been so all Spring and Summer. I have used all the chemicals my pet dealer sells as well as I have a 25W UV to no avail. The filter is a rubbermaid box with rocks and sponges. There are four Koin each about 3ft long and 3 years old in the pond. Help!
SWB


Koi38
Senior Member


Jul 21, 2005, 11:40 AM

Post #33 of 51 (1244 views)
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Re: [Sbostian] Green water - TT or UV or both? [In reply to] Can't Post
Hi SWB,

When you said green water is it like suspended algea???
How old is your UV??
Can you tell us more about your filter and your pump (sizes).

rgds,
Jon

"DuKu Friendly"
_____________________________________
"No one is ever too old to know better"

http://s3.photobucket.com/albums/y63/Koi38/


koiguyoz
Member


Jul 21, 2005, 7:44 PM

Post #34 of 51 (1231 views)
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Re: [Koi38] Green water - TT or UV or both? [In reply to] Can't Post

Are we talking about water this green? (and no thats not my pond).


Koi38
Senior Member


Jul 21, 2005, 7:55 PM

Post #35 of 51 (1224 views)
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Re: [koiguyoz] Green water - TT or UV or both? [In reply to] Can't Post
Hi Ben,

That guy has a serious pond problemLaughLaughLaugh Nice bridge BTW.Smile

rgds,
Jon

"DuKu Friendly"
_____________________________________
"No one is ever too old to know better"

http://s3.photobucket.com/albums/y63/Koi38/


Sbostian
Koi Lover

Jul 22, 2005, 12:09 AM

Post #36 of 51 (1194 views)
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Re: [koiguyoz] Green water - TT or UV or both? [In reply to] Can't Post
Yes, that type of green water. The pond is three years old. The first year, the UV light took care of it, but last year and this year it did not good. I got a new UV light in the rubbermaid type box last year. The pumg is 750 gal type. Last winter, the water was perfectly clear, but now I can only see the Koi as they come up to eat. Thanks for any help.
SWB


Koi38
Senior Member


Jul 22, 2005, 11:58 AM

Post #37 of 51 (1161 views)
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Re: [Sbostian] Green water - TT or UV or both? [In reply to] Can't Post
Hi SWB,

The UV bulb has a lifetime of 12months, how old is it now and how many watts???

rgds,
Jon

"DuKu Friendly"
_____________________________________
"No one is ever too old to know better"

http://s3.photobucket.com/albums/y63/Koi38/


mpagri
Koi Lover

Jul 22, 2005, 12:23 PM

Post #38 of 51 (1159 views)
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Re: [Koi38] Green water - TT or UV or both? [In reply to] Can't Post
might as well update my situation too...the 36W UV made a HUGE difference. the water is very clear. last two days actually the hose kept slipping off the uv unit and the water starting going green again. i hose clamped it on so should be clear again in a few days again. i love this new UV.

the only thing is now i have a lot of algea floating on the surface. i think it might be dead algea clumping together after it goes thru the UV. i dont have a skimmer and i dont know what to do about this dead algea on the surface.

other than that though with a little patience (not nearly as much as some other methods) the UV takes care of yuor green water like nobodys business.


Koi38
Senior Member


Jul 22, 2005, 1:20 PM

Post #39 of 51 (1153 views)
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Re: [mpagri] Green water - TT or UV or both? [In reply to] Can't Post
In Reply To
the only thing is now i have a lot of algea floating on the surface. i think it might be dead algea clumping together after it goes thru the UV. i dont have a skimmer and i dont know what to do about this dead algea on the surface.

Hi mpagri,

I had similar probs with floating algea, my koi kept on munching on them until it stopped appearing.

rgds,
Jon

"DuKu Friendly"
_____________________________________
"No one is ever too old to know better"

http://s3.photobucket.com/albums/y63/Koi38/


koiguyoz
Member


Jul 22, 2005, 6:51 PM

Post #40 of 51 (1145 views)
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Re: [Koi38] Green water - TT or UV or both? [In reply to] Can't Post
I would also suggest upgrading your filtration system when you're upgrading your UV, but more importantly the filtration system.

The algal bloom is a result of the growth of the fish that now put out more wastes than they did as younglings. The population of good bacteria inside your filter simply can sustain the load it has.

Another question? How do you wash your filter media? Not too much, and gently in pond water I hope :).


Sbostian
Koi Lover

Jul 23, 2005, 2:21 AM

Post #41 of 51 (1119 views)
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Re: [Koi38] Green water - TT or UV or both? [In reply to] Can't Post
25 Watts, I believe and I got it last Summer. Turned if off during the Winter. At one time last year, I even ran two UV's and it made no difference. I put a new bulb in the old UV at that time. (15 watt)
SWB


Koi38
Senior Member


Jul 23, 2005, 6:15 AM

Post #42 of 51 (1105 views)
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Re: [Sbostian] Green water - TT or UV or both? [In reply to] Can't Post
Hi Sbostian,

Lets look at other things. Like your filters. I know you use some type of filter(rubbermade?).
Can you tell us the size of this filter???
How often you clean it??? and with what???
Size of your pump???
Stocking level???
How many times per day you feed your fish???
What are your water parameters???

rgds,
Jon

"DuKu Friendly"
_____________________________________
"No one is ever too old to know better"

http://s3.photobucket.com/albums/y63/Koi38/


Sbostian
Koi Lover

Jul 23, 2005, 10:43 AM

Post #43 of 51 (1096 views)
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Re: [Koi38] Green water - TT or UV or both? [In reply to] Can't Post
The rubbermaid type box holds two sponge type filters and the bottom of the box has lava type rock. The filters will get completely matted with green gunk in a day, but I only wash them with water about twice a week. This box also has the UV light.
The four Koi are three years old and are large-probably close to two to three feet in length and they are heavy. I feed them once a day with Koi sticks that I get at the Wet Pets store.
The PH of the water is higher than 7.4-the highest my tester will read. I have previously changed over 90% of the water at one time and the water will be completly green in less than 2-3 days. I have tried every chemical that Wet Pets sells over the last 2 years including barley pellets and nothing has helped except the cold Winter. The pond averages about 4 feet deep and is about 16 feet long and 9 feet wide.
I truly appeciate your time and effort because I am very frustrated in that I am unable to see my fish.
SWB


koiguyoz
Member


Jul 23, 2005, 4:18 PM

Post #44 of 51 (1086 views)
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Re: [Sbostian] Green water - TT or UV or both? [In reply to] Can't Post
From your pond size average, it sounds to be around 18,000 litres in capacity. It's less likely to be fish load, and I feel it has to be with a filter trying to keep a handle on 18,000 litres of pond water.

In either case, a 2000 litre (with around 2,000 kilos of lava rock) trickle tower should be sufficient in establishing a mega load of good bacteria to wipe out the algal bloom, pushing around 15,000 to 20,000 litres through an hour through the filter.

I know it probably sounds silly to have such a huge filter, but it sure beats spending money on UVs and chemicals. I currently run a 300 litre trickle tower on a 5000 litre pond, pushing around 6000 litres per hour of water through the biofilter each hour. There's around 10 30-50cm, plus another 20 15-25cm koi in there.

There was another member here who created a similar trickle tower (after reading my site). He solved his green water problem...and that made me happy :D

Time to make a big trickle tower then hey?


Koi38
Senior Member


Jul 23, 2005, 4:29 PM

Post #45 of 51 (1085 views)
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Re: [Sbostian] Green water - TT or UV or both? [In reply to] Can't Post
Hi Sbostian,

I think your problem now is your filter. Its not doing its job due to under size. Cold weather is ok but summer time comes you'll get an algal bloom, koi is more active, eating a lot means more waste. Installing a large TT will help a lot, but water going in to this should be clean. Other thing you can do is add more filters. You can add a settlement, your existing filter as prefilter, then large TT. Good luckSmile

rgds,
Jon

"DuKu Friendly"
_____________________________________
"No one is ever too old to know better"

http://s3.photobucket.com/albums/y63/Koi38/


Sbostian
Koi Lover

Jul 24, 2005, 1:42 AM

Post #46 of 51 (1046 views)
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Re: [koiguyoz] Green water - TT or UV or both? [In reply to] Can't Post
I will give it a try. Thanks very much.
SWB


Sbostian
Koi Lover

Jul 24, 2005, 1:43 AM

Post #47 of 51 (1041 views)
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Re: [Koi38] Green water - TT or UV or both? [In reply to] Can't Post
You have been very helpful and I will give it a shot. Thanks.
SWB


KangaKoi
Koi Lover

Jul 26, 2005, 2:17 PM

Post #48 of 51 (969 views)
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Re: [koiguyoz] Green water - TT or UV or both? [In reply to] Can't Post
In Reply To
From your pond size average, it sounds to be around 18,000 litres in capacity. It's less likely to be fish load, and I feel it has to be with a filter trying to keep a handle on 18,000 litres of pond water.

In either case, a 2000 litre (with around 2,000 kilos of lava rock) trickle tower should be sufficient in establishing a mega load of good bacteria to wipe out the algal bloom, pushing around 15,000 to 20,000 litres through an hour through the filter.

I know it probably sounds silly to have such a huge filter, but it sure beats spending money on UVs and chemicals. I currently run a 300 litre trickle tower on a 5000 litre pond, pushing around 6000 litres per hour of water through the biofilter each hour. There's around 10 30-50cm, plus another 20 15-25cm koi in there.

There was another member here who created a similar trickle tower (after reading my site). He solved his green water problem...and that made me happy :D

Time to make a big trickle tower then hey?
And that member was me. I made myself two 120L TT using lava rock and run this two TT for about a month and "Holly Cow" I have never seen my water ever so clear. Thanks to my two sifu the Ozguy and Koi38. In the past i used Bio balls for the TT but can never get the "Bloody" water to clear properly but Lava rocks did the trick (Some minerals in the rocks ? I don't know, not even Dr Conrad know) but the result proved that TT with lava rock really "Rocks". And another thing, my kois eat the string algae that grow on the side of the pond and i notice that the "Bloody" thing not growing back at all.

The next pond improvement is to install a bottom drain. No, may be better that i built another pond biggerrrr.... pond.
Regards
Kangakoi


(This post was edited by KangaKoi on Jul 26, 2005, 2:26 PM)


KangaKoi
Koi Lover

Jul 26, 2005, 3:28 PM

Post #49 of 51 (952 views)
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Re: [Koi38] Green water - TT or UV or both? [In reply to] Can't Post
In Reply To
Hi Sbostian,

I think your problem now is your filter. Its not doing its job due to under size. Cold weather is ok but summer time comes you'll get an algal bloom, koi is more active, eating a lot means more waste. Installing a large TT will help a lot, but water going in to this should be clean. Other thing you can do is add more filters. You can add a settlement, your existing filter as prefilter, then large TT. Good luckSmile

rgds,
Jon
Master Koi38 and GuyOz,

You forgot to advice Sbostian number "36 Stand" it called "Dragon's tail swing" Smile
No, not really Sly...Have you try to dose 1% PP of his pond?. From past experience I PP my pond 1% every other day, it kills all of the algae and all of this dead algae will ended up in your settlement tank. If your mechanical filter picked up all of this dead algae your water will be clear.

The draws back of this method is that you have to clean out your settlement tank everyday and the foam on top of the pond may be unsighting (i am not sure about the stress to the koi but my koi seem to be fine) but it'll clear your water for sure. The real danger is the calculation of your pond "Volume" to do the 1% PP, else fry fish for dinner.

If you game enought and desperate enought then give this a try. But before you do please read up on all of the post related to PP and seek more advise.Sly.


Koi38
Senior Member


Jul 26, 2005, 5:34 PM

Post #50 of 51 (932 views)
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Re: [KangaKoi] Green water - TT or UV or both? [In reply to] Can't Post
Hi Kangakoi,

I think you've been reading a lot of my and ozguy posts and you're turning to a guruLaugh I'm glad that you finally have clear water. All hard work paid off, good for youSmile Remember patience and lots of itWink

rgds,
Jon

"DuKu Friendly"
_____________________________________
"No one is ever too old to know better"

http://s3.photobucket.com/albums/y63/Koi38/

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