Sounds i should be worried about? Plus fixture hanging?

[Reeftanker3295]

Hey everyone!
I will start to get everything ready for the setup of my 55 gallon soon. Picked up the 55 on Sunday and excited to get it started! But it will be in my living room and dont want any loud noises to worry about so ill list everything im getting that im worried about making noise and you guys hopefully can tell me if i need to make any mods to help with noise?!
Skimmer: Reef Octopus BH 800S HOB w/ Sicce pump (Does this skimmer make any microbubbles?)
Powerheads: Koralia 4 x2 (Anything other than sound i have to be worried about with these?)

Onto the next thing, Im getting a 48" 4x54w T5HO Tek fixture for lighting and want to know if there is an easy way to make some legs or some way to get this fixture to stay over the top of the tank? Want to get the mounting legs but they are like 70 bucks and trying to keep my price down. So how should i hang this thing?!

The total for all the equipment so far is 983 dollars
Lighting: 48" 4x54w T5HO Tek fixture
Bulbs: ATI Blue Plus, UVL Actinic White, ATI Aquablue, ATI Blue Plus (In that order)
Skimmer: Reef Octopus 800S w/ Sicce pump
Moonlights: Extreme Moonlight LED Tube
Powerheads: Koralia 4 x2
Heater: Jager TS Series Heater 150w
Other Equipment: Marine Depot Refractometer, Coralife 150 gallon salt mix, Typhoon 5 stage RO/DI system

[Mr.Peanut]

The koralia's are virtually silent. During the day, when the lights are on the ambient noise in the house will drown out the cooling fans. Middle of the night, pumps can be noisy but after a day or two you get used to it. Are you gonna run a sump? Is the 55 drilled? The most common noise complaint would probably be a loud drain pipe. But there are fixes for that.

[Reeftanker3295]

No sump, just the HOB skimmer, was thinking that i wouldnt have much noise due to that just making sure.

[Loverotties]

The loudest part of my tank is the fans in the fixture,but they go off when I go to sleep.