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#169930 - 06/24/09 05:58 PM From green bloom to brown....any advice
WSimanovich Offline
Lunker

Registered: 07/25/08
Posts: 53
Loc: Conover, NC
Hello..

Our 3 acre pond, which is 20 ft deep in the center, is in it's second full year. We limed heavily this past winter and fertilized when the water temps hit 60. We had an excellent bloom. BG and LMB are thriving.

May and June brought a lot of rainfall to NC on a daily basis. The new water from the watershed was more than our siphon could handle on several occasions, causing some good top water to be lost over the spillway. The siphon worked non-stop on many occasions.

After this period of heavy rains, we have lost our bloom. The pea green top water is now a rust brown color. Water temps are 78 degrees. We have fertilized again now that the rainy period is over. In short, does anyone have suggestions as to the brown water color? It's not muddy water. Dead bloom? Any suggestions would be greatly appreciated. Thanks in advance....WS

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#169950 - 06/24/09 08:51 PM Re: From green bloom to brown....any advice [Re: WSimanovich]
Bill Cody Offline
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Registered: 04/18/02
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Loc: Northwest Ohio - Malinta OH
Rust color could be and likely is another species of algae growing due to a shift in nutrient balance and different concentrations. Brown color could be a zooplankton bloom but I doubt it. Is the suspended dirt/clay in your area causing the color? Water with a dead bloom usually quickly clears as dead tiny algae quickly settles and decomposes.
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#170026 - 06/25/09 07:19 AM Re: From green bloom to brown....any advice [Re: Bill Cody]
WSimanovich Offline
Lunker

Registered: 07/25/08
Posts: 53
Loc: Conover, NC
Hi Bill..Thanks for the quick response. Suspended clay can be a problem from runoff and construction sites far up the watershed, but this is a different color of brown; almost a rust color. It's more clear than suspended clay... Any ideas? We recently re-fertilized. Hope I didn't add to the problem, if it is in fact a problem. The fish are thriving.

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#170035 - 06/25/09 07:45 AM Re: From green bloom to brown....any advice [Re: WSimanovich]
Greg Grimes Offline
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Registered: 05/03/02
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Loc: Ball Ground, GA
if the reddish color is right on the surface probably red euglena. Do you monitor visibility with secchi disc? If not I strongly suggest doing so when fertilizing. You can tweak it this way if checking every couple of weeks and keep a more consistent bloom.
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#170061 - 06/25/09 10:53 AM Re: From green bloom to brown....any advice [Re: Greg Grimes]
WSimanovich Offline
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Registered: 07/25/08
Posts: 53
Loc: Conover, NC
Hi Greg/Bill

I just returned from the pond. The water color can best be described as pure brown. Almost a rust color. Greg, we do monitor visibility. The water is not clear at this time; just pure brown, a darker brown than clay runoff, which typically lasts a few days before settling. I'll try to post a photo. Thanks again for any advice...WS

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#170100 - 06/25/09 03:41 PM Re: From green bloom to brown....any advice [Re: WSimanovich]
Greg Grimes Offline
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Registered: 05/03/02
Posts: 3973
Loc: Ball Ground, GA
Ws, what is exact visibility we are talking about 6 inches or to you stained and 23 inches. Also if clay rarely for us does it only last a few days it stays in suspension for months.
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#170104 - 06/25/09 03:50 PM Re: From green bloom to brown....any advice [Re: Greg Grimes]
Yolk Sac Offline

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Registered: 02/06/07
Posts: 1255
Loc: Nashville
WS-

Where does the water draining into the pond originate? Does it drain from a heavily wooded area with a lot of decomposing vegetation? A pine forest? Hay fields?

I have a pond that drains a large forested area, water is always brownish as you describe, and fish do wonderfully. Just below, though with a different, spring fed water supply, is another pond with double the visibility, nice blue-green color.....I wonder if the huge inflow this spring brought a lot of tannins into your pond, completely washed out your lime,amd encouraged a different color algae bloom. The bloom in the upper brown pond is clearly visible at times, and clearly more brownish/reddish in color.

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#170127 - 06/25/09 08:40 PM Re: From green bloom to brown....any advice [Re: Yolk Sac]
Bill Cody Offline
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Registered: 04/18/02
Posts: 12476
Loc: Northwest Ohio - Malinta OH
I think you have a bloom of one basic type of algae. Species unknown until I look at it.
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#170322 - 06/27/09 11:16 AM Re: From green bloom to brown....any advice [Re: Bill Cody]
WSimanovich Offline
Lunker

Registered: 07/25/08
Posts: 53
Loc: Conover, NC
Here are a few photos taken this morning. The pond was pea green with low visibility before the rains. Its hard to photograph the brown color. Hope this helps.

We fertilized again a early in the week with a water soluable fertilizer. We also hung from trees, suspended in water, five gallon buckets, drilled with holes and screened, then filled with granular fertilizer in the spring entrance that fills the pond. We were amazed at how fast the granular dissolved when suspended in the water. If productive, this is certainly more cost effective.







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#170332 - 06/27/09 11:39 AM Re: From green bloom to brown....any advice [Re: WSimanovich]
WSimanovich Offline
Lunker

Registered: 07/25/08
Posts: 53
Loc: Conover, NC
Even with the water color change the fish are thriving. This bass, caught this week was introduced to the pond July 13th of last year as a two inch fingerling. It now measures almost 13 inches and fat. The bluegill are also thriving. With the multiple feedings, they measure 8-10 inches and very fat! Even though we are in year two, we still see occasional FH minnows. We attribute this to the spring fed, creek entrance to the pond that is full of plants and grasses. Before the bass were introduced, the FH were in large dark clouds all over the pond.

Do you find that once your pond is built and can be fished, you are late to the office and early to leave on a daily basis? Or is this just me?

Thanks for all the help....WS





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#170358 - 06/27/09 05:20 PM Re: From green bloom to brown....any advice [Re: WSimanovich]
Ric Swaim Offline
Lunker

Registered: 04/24/03
Posts: 1902
Loc: Surry Co NC
WS, I have the same. Water has always been dark green until this year with a very wet spring. After all the rains my pond turned brown & has stayed that way.
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If you can read this ... thank a teacher. Since it's in english ... thank our military!
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#170369 - 06/27/09 07:13 PM Re: From green bloom to brown....any advice [Re: Ric Swaim]
WSimanovich Offline
Lunker

Registered: 07/25/08
Posts: 53
Loc: Conover, NC
Ric, you're not too far from me so I assume you've had the same rainy spring. We went weeks with big showers every day. I lost some good water over the spillway and siphoned huge amounts of bad water off the bottom. There's no doubt the water turned over in the pond more than once.

It's definitely not muddy water. It's some sort of bloom, but not the one I want! I'm hoping my recent fertilization hasn't perpetuated the problem. I guess we'll find out soon enough. In the meantime the fishing is super....WS

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#170432 - 06/28/09 03:16 AM Re: From green bloom to brown....any advice [Re: WSimanovich]
CJBS2003 Offline
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Registered: 01/19/09
Posts: 10457
Loc: northern VA
My forage fish pond is looking the same way. A deep brown bloom in it. It was crystal clear just a month ago, now the bloom is so thick you can't see 18" in.
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#170511 - 06/28/09 02:26 PM Re: From green bloom to brown....any advice [Re: CJBS2003]
Ric Swaim Offline
Lunker

Registered: 04/24/03
Posts: 1902
Loc: Surry Co NC
I also get a small amount of very dark brown to black scum floating unattached very similar to polen in the spring in how it looks.
Vis. is apx 2ft. After a heavy rain I do get a small amount of orange/tan clay particles entering in one end of the pond but it always settles quickly.
Everything else seems ok, I'm just not crazy about the color.

WS, we got the heavy showers & then 2 weeks of constant rain. I guess mine turned brown around the first of May.
Sure miss that nice dark green color.
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If you can read this ... thank a teacher. Since it's in english ... thank our military!
Ric

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#170587 - 06/29/09 06:22 AM Re: From green bloom to brown....any advice [Re: Ric Swaim]
WSimanovich Offline
Lunker

Registered: 07/25/08
Posts: 53
Loc: Conover, NC
Does anyone know how long this type of bloom lasts?

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#170602 - 06/29/09 09:17 AM Re: From green bloom to brown....any advice [Re: WSimanovich]
Greg Grimes Offline
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Registered: 05/03/02
Posts: 3973
Loc: Ball Ground, GA
WS, I have great data on this. Sea Pines on Hilton Head Island tracks things closely. They had ugly brown water. They had been fertilizing. I told them to take their Do meter and check, sure enough low in am then high in pm, classic phytoplankton, visibility nice 28 inches. We send sample to Bill Cody and sure enough he listed many species of phytoplankton. Crazy thing is about 3 days after sample submitted lake turned beautiful green color. We do not know what species of phyto is brown vs green and not easy to find out. However fyi it can turn quickly. Also easy to tell if the brown is good for fish you can take dissolved oxygen readings, it will tell you if phytoplankton or just suspended inorganic particles.
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www.lakework.com

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#170668 - 06/29/09 02:51 PM Re: From green bloom to brown....any advice [Re: Greg Grimes]
Ric Swaim Offline
Lunker

Registered: 04/24/03
Posts: 1902
Loc: Surry Co NC
Thanks for the info Greg.
This pm my pond apears to be turning maybe just slightly OD. Hopefully it's turning around.
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If you can read this ... thank a teacher. Since it's in english ... thank our military!
Ric

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#170782 - 06/30/09 09:14 AM Re: From green bloom to brown....any advice [Re: Ric Swaim]
WSimanovich Offline
Lunker

Registered: 07/25/08
Posts: 53
Loc: Conover, NC
Thanks Greg. That's good info.

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#170868 - 06/30/09 09:03 PM Re: From green bloom to brown....any advice [Re: WSimanovich]
rmedgar Offline
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Registered: 03/12/04
Posts: 2435
Loc: S. Mississippi
Hi Greg, I was going to call you today about my pond. It sounds exactly like what Ric described, and looks like the pictures that WS posted. I don't fertilize (have constant water flowing into and out of pond). Visibility is about 6". It's not muddy brown like it was after all of the rain in early June, but hasn't been clear for a month+. Do I need to hit it with Alum & Hyd Lime? Ph is 7.8
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#170871 - 06/30/09 09:23 PM Re: From green bloom to brown....any advice [Re: rmedgar]
ewest Offline
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Registered: 03/08/05
Posts: 19539
Loc: Miss.
From conversations across the country this year many ponds have a late plankton bloom. It starts as brown (unusual) with reduced visibility and is followed by a green phyto bloom. At ours 1 pond is green (ahead of the others), one is brown changing to green and one has no bloom yet but is showing brown with reduced visibility. All 3 have sufficient alkalinity and have been fertilized since spring. Something I have not encountered before.
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#170884 - 06/30/09 11:08 PM Re: From green bloom to brown....any advice [Re: ewest]
Walt Foreman Offline
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Registered: 05/20/09
Posts: 743
Loc: Columbia, TN
I'm working with a couple ponds, one five acres and one four, that have had brownish/rust colored blooms at some point in the last month or two. The five-acre pond got a beautiful green bloom after I fertilized the first time (which wasn't until May, just recently got back into working with some ponds), then after a bunch of rain it had a brownish bloom for a couple weeks; now it's back to a green bloom. The four-acre pond, meanwhile, which is down the hill from and receives runoff from the five-acre one (none at the moment), had a beautiful green bloom back in May and as recently as a couple weeks ago, and now has a decidedly rust tint. But I'm pretty sure it's plankton as we haven't had any rain to amount to anything in weeks.


Edited by Walt Foreman (06/30/09 11:09 PM)

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#170954 - 07/01/09 11:31 AM Re: From green bloom to brown....any advice [Re: Walt Foreman]
Greg Grimes Offline
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Registered: 05/03/02
Posts: 3973
Loc: Ball Ground, GA
Ewest as you know I haev discussed with you and Cody there is so much more that we do not know abotu plankton bloom than we do know.

Randy, we need to find out what it first before you go and add anything.

I assume you do nto have DO meter? That would help,
Have you done the jar test? get soem watrer put in jar does anythign settle out or still muddy.
Is 6" with a secchi disc? Feel free to call me to discuss, if 6 inches of phytoplankton you could have a fishkill on your hands.
Are the fish still feeding, not as well in the am time by chance?
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www.lakework.com

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#170971 - 07/01/09 01:55 PM Re: From green bloom to brown....any advice [Re: Greg Grimes]
ewest Offline
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Hall of Fame 2014

Lunker

Registered: 03/08/05
Posts: 19539
Loc: Miss.
Greg you are right - so much to learn so little time and a shortage of facts to base it all on.
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#170978 - 07/01/09 03:10 PM Re: From green bloom to brown....any advice [Re: ewest]
WSimanovich Offline
Lunker

Registered: 07/25/08
Posts: 53
Loc: Conover, NC
My fish are still feeding aggressively. I haven't noticed if the morning and evening feedings have any difference, but I will check it out tomorrow.

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#171194 - 07/02/09 09:07 PM Re: From green bloom to brown....any advice [Re: WSimanovich]
WSimanovich Offline
Lunker

Registered: 07/25/08
Posts: 53
Loc: Conover, NC
After 7-10 days, although still somewhat brown, the pond is beginning to turn green again. For the past two days there has been a silver film across half of the pond. I'd like to invest in a DO meter. Any suggestions? For future reference, where is the best place to send water samples to be certain of what I'm dealing with? Thanks for the informative posts....

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