Green rocks.

[Phyllishamilton]

I have a 1400 gallon pond With 12 fish of varying sizes, one water lily. We have a skimmer, biofalls, secondary pump on the pond floor leading to a UV clarifier. The water is clear but I have a lot of green growing on the rocks and spillway. Any suggestions as to how to fix this problem? Thanks!

 

[Mmathis]

Hello and welcome!

That green on the rocks is not only normal, but it’s beneficial to your pond. That’s algae.

 

[GBBUDD]

it's probably not a problem , it's a pond right?

 

[j.w]

@Phyllishamilton
Green is good. It is carpet algae. The long stringy type is removable w/a clean toilet brush. Keep the short stuff tho that clings to rocks and all else.

 

[JRS]

Welcome! The fish should help graze it down if you cut back on feeding.

I went away for a week and all of my algae disappeared!

So, I went out of town for a week. When I can back, I went to check on the pond and all of the string algae and banket algae were gone! I could see the each of the river gravel and all of the rocks on the plant shelves. So usually, when I am in town, at the end of the day I go sit by the pond...

www.gardenpondforum.com

 

[addy1]

Welcome to the forum!

 

[Lisak1]

Glad to see a new member without a problem! Your pond is doing what it should!

(Personally I'd 86 the UV filter, but you didn't ask, so I'll MMOB!)