The Shimmies?

[Britesprite]

Ok so unfortunately I do not currently have a test kit so I can't tell you what my water perimeters are, but hopefully someone here will be able to offer some advice. For the past 3-4 days one of my guppies has started to swim strangely. At first I thought he had a problem with his swim bladder because he was almost in a vertical position, but he just seems to hang there and do the shimmies. Sometimes he stops and seems fine, but then other times he goes and hides in the corner and does that. He is still eating and all the other fish in the tank are healthy. He is in a 10 gal with some mollies, danios and a couple cories. Anyone have any idea what could be causing this or how to help him? I have only lost one fish since I got the tank and don't want to lose another one.

 

[backtotropical]

Are you sure it's a male? Females do that when giving birth.

 

[-germ-]

Does he suffer any aggression in the tank?
What do you feed and how often?
What are your water stats?
Any deaths or illnesses in the tank recently?

 

[Britesprite]

Does he suffer any aggression in the tank?
What do you feed and how often?
What are your water stats?
Any deaths or illnesses in the tank recently?

I feed them flake food twice a day. He definetly isn't being bullied by any of the other fish, they are all pretty peaceful. I have had no deaths or illnesses in the tank for the last 3-4 months. Unfortunatly I don't have a test kit right now and can't tell you my water stats.