My saltwater tank!!!?

id get a better filter. koralias should be 2s. id leave out the chromis they tend to kill each other till one is left. i dont like sixlines they seem to be bullys in my tank. i would only have 1 cleaner shrimp unless u just like the way they look cus they are food hogs and annoying. u wont have enough nutrients to keep a sifting starfish alive either