8 O Lord, our Lord, how excellent is thy name in all the earth! who hast set thy glory above the heavens.
Click here for the details. In swimming pools, pink slime is caused by improper water & pool maintenance, environment, poor circulation to name a few. There appears to have occurred a dramatic rise in the reported cases of pink slime especially over the past 5 to 10 years. I'll go into more depth with this comment later.
There are three causes of green pool water. The first is a lack of chlorine. Without chlorine the pool water will quickly start to grow algae and turn green. Water without chlorine, especially if it has an algae bloom, is unsafe to swim in, and can be a breeding ground for mosquitoes and other insects. The second thing that causes pool water to look green (or yellow) is pollen.