So out of my 5 angels, i have 1 outcast. The other 4 picked on her some and now she just sits by the heater by the top of the tank looking pitiful. I have nowhere else to house her except maybe a 10 gallon snail tank the other 4 have completely ignored her since she started this. What is the chance she will be okay? Do i need to rehome her? Do u think it could be something else like her being sick?