Originally Posted by MANCUNIA13
How do they become to be in the tank? And is this a sign of a healthy tank? Sorry about all my questions it's just that you have the experience and good advise as do many others in this forum which is what we welcome .
Well..when a mommy copepod and a daddy copepod...sorry, I had to use that one.
There are thousands of varieties of them and they generally come in with live rock.
Here is a good link about copepods and amphipods.