07-14-2011, 06:18 AM #1
Green Spotted Pufferfish...question
I have a little Puffer, and recently have noticed that his tummy turns a dark grey almost black color. He also has this after he eats; his Puffer brother doesn't have it.
Can anyone tell me what it could possibly be? Should I be worried about it? If it's something I should be concerned about, what can be done?