Feeding & Nutrition Guide

Match food to the fish

Tropical fish do not all eat in the same way. Some feed near the surface, some in mid-water and others on the bottom; nocturnal species may feed later in the day. Food should therefore match the species' natural feeding position and nutritional needs. RSPCA guidance recommends buying the right type of food and using different presentations where necessary, such as sinking foods for bottom dwellers.

Control portions and observe

A consistent routine makes feeding easier to manage, but quantity matters more than simply filling a feeding schedule. RSPCA advises feeding only what fish can eat within about two to five minutes and avoiding overfeeding. Start with a modest amount and observe how quickly it is consumed. Persistent leftovers should prompt a review of portion size, stocking and feeding method because decomposing food contributes to poorer water quality.

Nutrition, variety and water quality

Some tropical species benefit from suitable supplementary foods, but additions should be appropriate for the particular fish and introduced carefully. Frozen foods should be fully thawed before feeding. Observe appetite and body condition as part of routine care. A sudden loss of appetite can accompany illness or water-quality problems, so testing the aquarium is sensible before simply changing foods. Keep food dry, clean and stored according to its instructions.