[Fishy Lee]

What to electric blues and yellows look like when they're pregnant? I have two trios, electric blues and yellows, and first one of the yellows had this funny "pouch" thing under her mouth (definately was the female of the trio) and then it dissapeared, but while she had it she was very docile. Now one of my electric blues are doing the same thing, he/she (I'm not sure on the blues) has a funny pouch under his mouth, and he's hiding in his cave, even during feeding time which is really rare for ANY of these fish. Could they have been/are pregnant?