helo there! I am a fairly new member with a big problem! one of my koi is not doing so well- he has one cloudy or "dead" looking eye and doesn't move unless he is prodded by one of the other fish, but even then not very far or very fast. This is very confusing to me because i checked the pH and ammonia levels- both are about perfect! He hasn't been doing well since i moved the pond inside my garage into a 100 gallon tank from the 300 gallon pond that tends to freeze solid in Northern Illinois winters! Any incite and advice would be greatly appreciated!