Ive had ma ebjd for about 4months and hes been living in a 10 gallon that whloe time. just yesterday i moved him to my 55 gallon tank that was setup and running for him. the problem was he was a really pretty blue torqouise over his whole body and hes a dark blue now. hes happy and exploring the tank and no signs of stress but would want him back to his old color
any ideas why that happened?
