Yes I know but in England not many aquarium shops shut down I personally haven’t seen one shut down all I want to know is where you buy aquarium racks with sumps already with it
Seriously? You haven’t looked very hard!
Take a look at UltimateReef and you’ll see the shop closure threads there.
Bricks and Mortar retail generally isn’t doing well, energy costs make reef keeping a niche hobby and you’ll be very fortunate to build an installations / maintenance business to give guaranteed income in the UK except perhaps pond work.