What are fish gills?
Fish gills are complex respiratory structures located on each side of the head, protected by the operculum in most species.
They consist of:
- Gill arches
- Gill filaments
- Lamellae for gas exchange
How gills function
Water enters through the mouth and passes over the gills, where oxygen diffuses into the blood.
Efficient gill function depends on:
- Adequate water flow
- High dissolved oxygen
- Clean water conditions
Impact of poor water quality
Gills are easily damaged by:
Chronic exposure can cause inflammation and respiratory distress.
Aquarium management
- Ensure proper filtration and flow rate
- Avoid overstocking
- Perform regular water testing
Healthy gills are vital for fish metabolism and survival.