green water

[prawn]

hello,
i have a 400litre heavily planted natural pond with two goldfish. the pond stays transparent for a month or so but as soon as debris fall into the pond the water becomes green and after a while clears. would it work to have a roof over the pond? as in a small shelter made from transparent plastic. would this magnify the suns rays or no? any help is appreciated.

thanks in advance,
prawn

 

[prawn]

has anyone done this before?

 

[Mmathis]

Are you wanting to keep debris out of the pond? For that, some type of netting night work better, but I don't have experience with using transparent plastic. I would think it could heat the pond. They do make covers that are semi-opaque that would still let some light in.

 

[prawn]

Do you think an opaque cover would let in enough light for my plants and yes the roof is to prevent debris from falling in