Wrasses, and brittle stars?
 

will a 6 line, or 4 line wrasse, eat my tiny brittle stars?

Nigel I know that i didnt have any of the baby brittle stars when i had wrasses in my tank...

Never tried a 4line but I have a 6line in my 75g with about ten trillion (give or take) little brittle stars.

6 line and brittle stars
 

I saw mine attacked and ate up a small brittle star the other day. much to my dismay its also grown from a 1/2" to 1.25 inch in about 2 months. so i don't think i have too many little brittle stars left