blue diamond chaning color

[joee777]

i have two full groth blue diamond pair. from last 4 days this pair changing color rapidly.sometime its getting dark and sometime its getting light.do you have any sugestion about this problem. please help me

[Merrilyn]

Hi Joee, as I mentioned to you in your PM, can you tell me the details about your tank water, and what other fish you have in the tank.

How often do you do water changes, and how much do you change.