Weird…

Do any of you have fish?

Something really weird happens to Indigo’s water.

I clean his bowl once a week like I was advised to by the pet shop clerk.

A couple of days after I clean it, it starts getting all murky on top.

BUT, the weird thing is that usually after 2 days of it being murky, it clears itself out and then only a collection of bubbles are left on top of the water.

Is this normal and what is it?

 

taken from below. see the murky water?

taken from above