Sounds good.
The final plan is to uproot all of the plants that are affected, drain down to the substrate, paint the wood with APT fix, then replant with only the best looking tops, fill with RO water remineralized with APT Sky and APT 3. Tomorrow I will do another 100% WC with a filter cleaning and APT on the wood again, repeat Sunday. Lights will stay knocked down to 75umols and I'm swapping the co2 regulator/inline diffuser for a GLA dual stage regulator and reactor.
I'll be posting updates with photos along the way to document, including an ugly algae phase photo before working on it so you all can see what I'm starting with.
Edit for Dennis, I have purigen in my canister. I know APT Fix uses some organic compounds in it, do you know if it is okay to leave the Purigen in or would it be more advantageous to remove it during the APT Fix treatments?