great job!
cleaning will be a breeze. just make sure you have a water pump siphon thingy (like $5-8 USA so maybe 10 pounds or so) and a nice bucket or big pitcher to treat water before you put it back in. these are for water changes.
every month, go thru the media to loosen trapped debris and then siphon it out during a major water change.
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just remember if you can, get a biOrb air pump ($12 USA so about 24 pounds or so) and have it hanging or attached the wall a bit above the tank.
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now show us your amazing fish in it