ID please

[HurricaneCaleb]

214139

A. What are the green things growing in the bottom of the picture?

B. What is the fuzzy crap all over my rocks? Algae or bacteria

B2. How do I get rid of it?

Thanks

[HurricaneCaleb]

214140

Rocks are covered with a snowy looking substance

[Anemone]

The green things look somewhat like neomeris algae, although neomeris is usually a brighter green color.

Kevin

[HurricaneCaleb]

Any ideas on the white stuff?