Not very low but the Platy has been heavy breathing, I think the Molly has been a bit constipated and seems fine now as far as I'll goes but poor thing has red little gills but done a water change so that should hopefully change,not looking good for little Platy though, should I euthanise? I don't want it suffering and to wake up tomorrow to see him dead? I'm so mad this has happened, from ich to this little guy I have noticed he has been like these for around 5 days but has gotten worse, my tank has Been awesome until now but obviously highs and lows expected. I've even had a guppy breed with a Molly by accident lol