Hi. I'm new to fish and these forums, so please bare with me. I've had my tank set up for a good 4 months or so now and everything has gone swimmingly, up until last night. I noticed one of my lady guppies rubbing herself over the gravel and since then one by one all my other fish have been rubbing and flicking themselves over anything and everything, it looks like they are break dancing. I can't see anything noticable on them and I've done a partial water change, but they are still grooving away. I am quite worried and not sure what it is, so I really need help as I don't know if they have a disease or not. Could it be Ich? If so what can I do to help them? My fish and I would appreciate any help you can offer me, thanks for reading my post.