help stock list 90g

:help: Hi I just got into saltwater, first off yes I been doing homework for the last 2 months before buying my 90g tank and 120lbs of dry rock for 370$ came with 1 pump, to hydor wave maker, 2 heater, a cheap light, and a kent coral feeder going to buy a new pump and make a in tank sump, was wondering. If some can help me make 2 kind of list for my tank 1 a snowflake Eel predator tank, the other a dragonet base tank with nano fish with maybe 1 or 2 bigger fish. maybe some skimmer choice for HOB and int Tank, Please and thank you..
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