I bought an anemone from a guy and the rock that the anemone was attached to had lots of pests on it... So i killed all the aptasia and my pepermint shrimp is a champ in getting to the ones i miss... But there were like 6-8 or maybe some still on the rock od small white/black stars on it... Here is a pic:
So i know that if you have lost of something it is usually bad
so are those good? I suspect they eat coralline algee ..
Here is the rock i bought:
The one with the two monti and anemone on it..