Transporting Your Fish and Moving an Aquarium Without Breakage or Stress
Moving an aquarium is one of the most delicate operations in fishkeeping: you have to protect the fish, the filter bacteria and a glass tank that forgives no knocks. With the right method and a little equipment, everything goes smoothly. Here is the complete procedure endorsed by Planète Pets.
The transport equipment to prepare
- Fish transport bags (0.50 to 1 € each at pet shops), doubled up for safety, filled one-third with water and two-thirds with air.
- A cool box or polystyrene crate (10 to 30 €) to maintain temperature and darkness, which calms the fish.
- Food-grade containers of 10 to 20 litres (5 to 15 € each) to carry part of the tank water and the filter media, kept submerged.
- A net, water conditioner and, for long journeys, a battery-powered air pump, covered in our oxygenation guide.
The order of operations on the day
- 1. Don't feed the fish for 24 hours before departure: they'll foul their transport water less.
- 2. Unplug the heater and filter, net the fish and bag them by species.
- 3. Keep the filter media submerged in tank water, never dry: the bacteria die within hours in open air.
- 4. Save 30 to 50% of the water in the containers, and put the plants in damp bags.
- 5. Empty the tank completely: an aquarium must never be carried with water or gravel inside — the stresses would warp the seals and the glass.
Securing the journey
Wedge the empty tank flat on a blanket, with nothing resting on top. The cool box holding the fish travels inside the vehicle cabin, out of the sun — never in an overheated boot. For journeys of up to two or three hours, a properly bagged fish runs no risk; beyond that, plan for battery-powered aeration and, in winter, a pouch of warm water against the bags.
Setting up again on arrival
Reinstall the substrate, decor, the saved water and then fresh conditioned water at a similar temperature. Restart the filter and heater, wait for the temperature to stabilise, then proceed as you would after a purchase: float the bags for 20 minutes, gradually add tank water, and release the fish without pouring in the transport water. Thanks to the preserved filter media, the tank usually avoids a fresh cycling period, but monitor nitrites for two weeks with your water tests.
Key points to remember
Tank always empty while being carried, bacteria kept snug in tank water, fish in the dark and in the quiet: these three rules account for 90% of a successful move. Find the right equipment in our travel and safety section and all our guides on the fish hub.
This guide is part of Planète Pets’s Fishkeeping universe. Our advice is general in nature: for any health concern, your veterinarian remains the only reference.