Pond Boss Forums MANAGING AN EXISTING POND Fertilization From green bloom to brown....any advice

Try this - comes highly recommended by many here:

https://www.ysi.com/ysi/Products/Product_Family/Product?productID=WQS_DO200

that is a good meter but have sent back three times on the two we have. The 55 is much better meter but quite a bit more $.

Your county extension agent can do water sample analysis. Feel free to send to us we wil discoutn to any PB memeber but DO is not accurate on samples more thatn 24 hours old.

i have been keeping up with this thread and experiencing the same thing at my pond at the same time. we have not had rain for 5 weeks here. my pond is at full pool and has never quit running out of the pipe. it is very slow, but still running. i had fertilized heavily during all the rains we were having, when it stopped is when my rusty/brown muddy looking water appeared. we still have not had rain and my pond has suddenly turned green. i did notice a few stripes/bands of brown in the pond today, but for the most part it is green. we have had some wind here the last week (10 mph) and that seemed to really make a difference. seems like the brown was only in the first few inches of surface water. my standpipe has a trash rack that extends about 3' below the surface.

there is a creek (halawakee) near my house that i cross a few times a week. it has an old gristmill and dam about 50' from the bridge. beans mill in alabama if anyone wants to google it. the water there has been exactly the same. looked very muddy/rusty until the last week and now suddenly has a clearer green look.

any idea what is going on?

Just an update: After about a month with min. rain & hot sun my pond has turned back to it's normal dark OD green.

Good deal Rick!

my update: after my pond went back green, we had a little rain, less than an inch and now my pond is as brown as ever... i saw 2 ponds today that only have a dam seperating them, one of them had green water, the other had brown water.

my pond hasnt been brown until i started using the super powder fertilizer. reckon that has anything to do with it? my friend is using same fertilizer and his is as ugly as mine..

Many times Scott the brown color is either brown species of phytoplankton or it is zooplankton that has grazed the phytoplanton and a natural and desirable occurence.

Unfortunately, sometimes great fishing ponds aren't always the prettiest... Crystal clear water means there isn't much zooplankton or phytoplankton, the building blocks of the food web in a pond.

each time here the last 2 months when the wind blows my pond clears up. the brown stuff must be only in the first few inches from the surface. i have the prettiest green water the last few days. the very upper end is brown where it is being blown to.

I see the same thing as scott69. We also have a thin silver slime over one-third of the pond. I haven't been satisfied with the water color all summer, but the fish are thriving.