As i use remote control for plugs this will be simple to do. But for aquarium no matter which system electronics we use even on my work as audit and supervisor on hyper scale data centers in construction we need not 1 but 3 way of redundant power control.
When 1 fail...2nd will work...if 2nd fail than 3th must be 100%.
Example maybe OT but will twll you: in 2009 my uncle wanted to purchase a boat lets say 14 m yacht Feretti 470 and i take responsibility to go to Italy in factory and check and decide...
When you came they slurp around you as Texas oil owner client...as they know someone will cash 850.000 euro as cost was around this number...
I check and all main board captain control on top was touch screen displays and inside on main deck simple automatic fuse one.
Disaster.
Outside is sunshine strong, reflection, rain, salt water, no matter IP 86 or even more, humidity 90% splushing and wet hands and fingers...
How you can use touch screens?
You need simple American Russian wetproof military grade switches ON and OFF for outside and not touch display.
Inside the same must be a second box of switches when all elect4onics fail for any reason.
Same on aquarium do not relly on electronics, displays, ect.
Parallel switches manual ON OFF for pumps, heaters lights backup ect.

of course we refuse 470 with this installation. It was bad try to upgrade fair boat on sale...