Anemone Dying Help

[Shinobu]

My anemone has been looking really poor since about 2 weeks ago. Its stomach is partially sticking out. I think it may be a bacterial infection, but I don’t have a QT tank and this is a nano so I’m worried it might die and nuke it. Should I remove it from the tank?

 

[Shinobu]

Some more pics from yesterday and here are my levels.
Alk: 7.5
Phos: 0.25
NO3: <10
Salinity: 1.026
Ca: 420
pH: ~8