Hold a living greenhouse through a Canadian winter.
Stock the fish. Plant the beds. Keep the flock. Then run the clock — and try to hold a fragile, breathing ecosystem together through a real Ontario January.
The heater never sleeps.
Daylight shrinks, water cools, the heating bill climbs. Inside the shell the heater, the heat exchanger and the exhaust fan are one loop — every watt the glazing loses has to be put back before the water does.
Nine-hour days starve the canopy.
The sun barely clears the treeline in December, and the beds take everything they can get. Pay for grow lights or watch everything stall. Stagger your plantings and the harvest compounds anyway.
Warm water holds less oxygen.
Your fish quietly poison their own water. Colonies of bacteria turn that poison into plant food, and the plants hand clean water back to the fish. Feed the loop and it hums.
It warns you about the future, not the past.
Alarms fire after something breaks. Veegy runs your greenhouse hours into the future instead: oxygen drops below 5 mg/L in about six hours. Start the second aerator now and the line bends back.
Build it in October. Answer for it in February.
Compress twelve months into an evening and the simulation tells you what actually held — harvest weight, fish survival, seasons weathered in a row. Then replay the exact same year with one decision changed.
Can you keep it alive?
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