Carbon does de-toxifiy - not sure about Purigen - as far as I know it's traps nitrogenous gas only (Nitrate), skimmer definetly not.
I've had a few Hatians go belly up and a few cucumbers aswell - I do run carbon for 48hrs a week,but up'ed that when I noticed issues, also immediatly discarded the dying animal. I've had no collateral damage. My tanks 210 gal. and matured - his is much smaller and 2 weeks old.
I've had a few Hatians go belly up and a few cucumbers aswell - I do run carbon for 48hrs a week,but up'ed that when I noticed issues, also immediatly discarded the dying animal. I've had no collateral damage. My tanks 210 gal. and matured - his is much smaller and 2 weeks old.