Odd Behaviour

[Trillian]

I have three baloon mollies in my tank and two of them are "normal" but one has me confused. During the day she swims around like the other two, eats happily, poops normally, and there are no obvious signs of illness. At night though she sits on the bottom of the tank leaning up against her log, barely moving. If I put food in the tank she will usually snap out of it and swim around normally again but last night I thought she was dying as she just woudn't respond to anything. Today though she is completely normal again and swimming around with her friends. What the heck?? I'm thrilled she didn't die on me but I'd don't understand her behviour. She's ben doing this for over a week now. Is this indication of some sort if illness?

 

[smurfyy_2k3]

should be fine i have fish that do that and they are all fine so i wouldnt worry

 

[x-fish]

hmm maybe a funny way of sleeping and probablyy has fish FOOD SENSES