I've been having some issues with my mollies! I recently bought two female dalmatian mollies and one day one of them was kinda swimming in place on the bottom very strangely, after I had them for a week and a half. She died that night. The other one started to do it the next day and I thought for sure it was going to die too. But for two days now it has been going back and fourth between swimming strangely at the bottom and floating at the top. Can't help but to mention that she swims in place in the exact spot the other one did! She isn't eating very much either- the flakes literally fall onto her and she doesn't eat it! I don't know what to do. I haven't used any products and I don't think it could be a problem with the tank. Is she grieving the loss of her friend or is she sick too?