Hi everyone, I have a sick fish. My tank parameters (Checked today after water change 24h ago) are: Ammonia:0 Nitrite:0 Nitrate 10 I cant get the nitrates down any more as the tap water is high. I have 4 adult platy and 1 6 week old fry in my main tank (54L) One of my adults eyes are bulging out her head, she isnt eating and mainly just floating in the plants. I have one male adult who will be moving to my 2nd tank (45L) when the 4 fry in it are older (currently 2 weeks old). I am making all male and female tanks. The male has been pecking at her and flattening his fins and darting at her. I am wondering if his attacking her has caused this to happen by stressing her out. She is also very pale. All other adults and the fry are fine. I read up on pop-eye and i dont know if i should take her out and medicate her, even if i do i dont know whats wrong with her as it says pop-eye can be caused by loads of different things. Any ideas anyone? Is it too late to treat her?