One of my 5 loaches died, as far as I can tell, no signs of injury or damage, all of them have been eating, so, any ideas of what he died of?
Water seems fine, as he is the only fish i've had die.
So, other options?
Overfeeding? Possible?
Whitespot? Doubtful as he is the only sick fish in the tank, all the other seem fine.
Any other options?