Aquarium keeping in Canada

Units: US gallons and metric

Canadian hobbyists often see US gallons on tanks and products (many brands are shared with the US), but packaging may also show litres (1 US gallon about 3.78 L). Use one system consistently for stocking, heater sizing, and dosing. Test kits and conditioners usually match the unit on the bottle.

Tap water by region

Water varies across the country: British Columbia and parts of the East often have softer water; the Prairies and many central regions can be harder. Municipal water is typically chlorinated; always use a dechlorinator. Test your tap so you can choose fish that suit your parameters. Rural well water may have nitrate or other issues; test before use.

Cold winters and heating

Canadian homes can get cold in winter. Tropical tanks need a reliable heater; choose one rated for your tank size and consider a backup or placing the tank away from drafts. Power outages are a risk; during long outages, avoid feeding and keep the lid on to retain heat. Monitor with a thermometer and App-aquatic.

Retail and regulations (CFIA)

Pet chains (e.g. PetSmart, Pet Valu) and local fish stores stock equipment and fish. The CFIA (Canadian Food Inspection Agency) regulates import of live aquatic animals and plants to protect against disease and invasive species. Never release aquarium fish or plants into Canadian waters; it is illegal and harms ecosystems. Check provincial rules for any extra restrictions.

Quick takeaways

• US gallons and litres both appear; stick to one for dosing and stocking.
• Test tap water; hardness and pH vary by region; match fish to your water.
• Heaters are essential in winter; plan for cold rooms and possible power outages.
• CFIA governs imports; never release fish or plants into the wild.