Ishita:

You may find this link useful:

https://www.homesalive.ca/blog/5-ways-to-get-rid-of-pond-algae/

Best

Syed

Dear Ishita,

Other than harsh chemical treatment that also negatively affects other biota in ponds, there really isn't any effective way to eliminate diatoms from ponds. Navicula sp. and other diatoms play an essential role in the overall balance of the pond food web and can be partially regulated with nutrient control procedures, but -- in my view -- should not be targeted for elimination. I attached a paper on silicon that may offer some insights.

I hope this helps.

Dear Ishita,

The link below and the attached pdf files may contain important information about your question.

Regards

SM Najim

http://www.petmountain.com/category/433/1/pond-algae-control.html

Dear Ishita.

If you are working in outdoor systems is kind difficult. Depend on the amount of water, it is possible to use mechanical filtration, UV or ozonification into the influent water to eliminate microalgae and bacteria. Other strategy colud be to reduce the light incidence (if it is possible). The light availability into the water column diminish considerably in cultures with minimum water exchange.

But, it is important to consider that Navicula, could be benefic in aquaculture ponds, because they can remove nutrients and contribute to the zooplankton prolliferation. Is it really necesary to eliminate this diatom? 

Thank you. Will surely go through the files I received. The diatom is inhibiting growth of the algae I have targeted for cultivation, this is why I would like to, if not eliminate it at least control its growth.