Handling & Socialisation Guide

Minimise physical handling

Fish are aquatic animals and routine handling is unnecessary. When movement is required, use suitable nets or containers and work calmly to reduce chasing and time out of water. RSPCA guidance warns that poor transport can cause shock or oxygen starvation and advises against sending fish through the post.

Transport and acclimatisation

During transport, temperature, oxygen, water quality and journey time all matter. Fish should not be overcrowded, and the journey home should be as direct as practical. When introducing new fish, follow the retailer's acclimatisation instructions and avoid abrupt changes in temperature or water chemistry. The RSPCA recommends floating the transport bag to equalise temperature before carefully transferring the fish and discarding transport water rather than routinely adding it to the aquarium.

Socialisation is species-specific

Fish do not need human handling to become socialised. What matters is appropriate interaction with compatible tankmates and a suitable habitat. Shoaling species may require groups, while territorial species may need separation or carefully planned space. If a fish repeatedly hides, gasps, loses appetite or behaves abnormally after handling or introduction, check water quality and seek specialist advice rather than repeatedly disturbing it.