It won't be fine with those water stats !!
Calcium and
Alk are well out of balance and mag is far to low
Mag needs to be around 1350
With calcium at 500
Alk should be 19.6KH !!! far to high
What salt are you using
With
alk at 8.5 calcium needs to be around 420
Is the stringy stuff brown if it is google brown jelly disease if not could just be remaining tissue