Feed the aquarium fish twice a day. Need a memory aid. This should be easy...
Food canister upside-down means they got breakfast, right-site-up means they got dinner.
Canister on top of the aquarium means I turned off the filter so it doesn't suck up the food, canister next to the aquarium means I turned it back on.
Easy.
I've managed about 2 days out of the past 50 when I got all of these correct. ⤻⤨⤹⤱⤳⤾⤩⤸