I have a 4 weeks old pond, the water is getting greener and greener
everyday , but after a rain yesterday morning (last about 20 minutes),
the water is almost crystal clear, I can even see the pond bottom
(about 4'5''), has anyone experienced it?
Is it because of the rain? or the weather (?) (the
temperature drop about 10 degrees)

I wish it rains more now. (in So Cal)