ok so i have a fully functional 120gallon with a few frags in it. my only problem with that tank is light penitration so i had to shelf up my liverock to put corals on that my fish gladfully keep knocking off. so i have a 25gallon with 2 exodons in it currently. i want to transplant them to another tank and use the 25 for a small reef. the filter is a aquaclear 500 (i know crazy flow but the exos liked it) im gonna put some liverock in to block the flow a bit. my main goal is a few corals a nice anemone and 2 black clowns. id also like to do seahorses since my daughter keeps buggin me for them. i have a heater that keeps a constant 76*. i plan on getting a glass hood and a dual lamp for coral bulb and nite bulb. im going to use water from my 120 to get it going as well as some liverock. would i need a skimmer for this setup?