So while people are enjoying the long weekend, I am grieving over my tank

Started with a burnt maxi jet 1200 of the biopellet reactor to xenia getting brown jelly and releasing nasty stuffs in the tank, some of the SPS have started to fade. I did 15 gallon wc and have another 10 gallon planned for tomorrow. I have given up on biopellets (don't know whether it caused all the problems but I am being very skeptical now). Kinda downed right now

Ran heavy dose of carbon for few hours.
Other than WC, I can't think of anything else to cure the tank. Any suggestion?