Help please

[wierenm2]

:headwally:

Past 2 days things have gone from good to terrible.

Everything is dying, tests all come back good.

please watch the video and let me know what you think.

Sorry I was unable to upload it. Hope the link works.

https://www.facebook.com/video.php?v=10203290141588424&oid=341407129805&saved

 

[organism]

No one's got time to watch a video, list what the issue is and what your parameters are.

 

[Gundo5000]

You mentioned salt content and PH tested fine but how about Cal/Alk/Mag/Phos/ and Nitrates? How old is the tank?