I am a minimalist.
I have two plugs on a tank, no more.
One for the filter, the other for the lighting.
I use canisters on 150 gal and down.
In line CO2 reactors.
PC's or MH's with electronic ballast, 250 w or HQI's.
Gas CO2,
Flourite or it's equivalents(Eco complete/Flora base/Onyx etc).
I use for fertilizers:
KNO3
K2SO4
KH2PO4
Trace(SeaChem flourish mostly)
50% weekly water change and that's about it.
I suppose you can sell the powerheads, ebay/aquabid, set up a different tank with them etc.
Regards,
Tom Barr