Actually, once you set up all of the equipment, the maintenance will be easier than a normal sized 200 gallon tank. With 2000 gallons, your water parameters will be so stable. It would take a tremendous error to shift the chemistry.
You will probably have a small natural ecosystem were certain parameters would be self sustaining.
Invest on either a Bubble King Deluxe 650 rated for 1500+ gallons or an RDK defractionator. Either one will cost you like 10k.
Lighting, pickup like 10 Reeftech LED fixtures.
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