I saw this especially colourful fire eel on youtube:
[video=youtube_share;ml5OynS6GV0]http://youtu.be/ml5OynS6GV0[/video]
The other fire eels on youtube seem much, much drabber in colour. Why is this? Is it more to do with genetics? Or does it have to do with habitat, lighting, temperature, water chemistry and quality, diet, absence or presence of tankmates, etc?
[video=youtube_share;ml5OynS6GV0]http://youtu.be/ml5OynS6GV0[/video]
The other fire eels on youtube seem much, much drabber in colour. Why is this? Is it more to do with genetics? Or does it have to do with habitat, lighting, temperature, water chemistry and quality, diet, absence or presence of tankmates, etc?