Fish perceive their environment primarily through vibration. Unlike mammals, fish do not have external ears - instead, they sense sound waves through a specialised system called the lateral line, which runs along both sides of their body and detects pressure changes and vibrations in the water. This makes them remarkably sensitive to the frequencies in their environment.
Research and observation have shown that fish respond to sound in distinct and observable ways. Certain frequencies can create a calming effect, while others may cause stress or discomfort. The key lies in selecting the right frequency, the right volume and the right duration for your specific aquatic companions.
100 Hz creates gentle, low-frequency vibrations that fish respond to positively. The compositions in this series blend 100 Hz with underwater ambience and whale sounds, creating a soundscape that feels natural and soothing within an aquatic environment. The frequency is low enough to avoid overstimulation while still providing a calming vibrational presence.
Place the music source approximately 30 cm from the aquarium tank. Adjust this distance according to the volume - higher volume requires greater distance. Please watch your fish carefully and ensure they are comfortable. Maximum recommended music duration for fish is 30 minutes per day. Fish hearing is sensitive, and even calming tones should not be played continuously for extended periods.
When playing frequency music for your fish, observe their behaviour to determine if they are comfortable. Positive signs include swimming towards the music source (they are enjoying it), staying in one spot and resting (they feel calm) and swimming in a gentle rhythm (they are happy and moving with the music). If you notice constant darting or erratic movement, they may be uncomfortable - reduce the volume or increase the distance.
Water changes should always include anti-chlorine treatment. Never use direct tap water as chlorine is harmful to fish. Avoid overly frequent water changes as this disturbs the beneficial bacteria ecology of their environment. Aim for a water change every one to two weeks, replacing 10% to 25% of the water each time, adjusting based on the bioload of your tank. If the water is very dirty due to leftover food, waste or a high number of fish, water change volume should be adjusted accordingly but it is not advisable to change more than half the tank water at any one time.
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