try putting all of the canisters into a 5 gallon bucket and let it run through until you think that it is safe.
The silicone in the seams will absorb the bleach.
heavy bleaching pourous items can cause a big rise in waters' ph, even after rinsed.
That's why after renewing Purigen the instructions are: first rinse it well, then soak 8 hrs in dechlor, THEN soak 4 hours in a solution of 1TBLSPN per cup of water of either Discus Buffer, Neutral Regulator or Acid Buffer.
A substantial amount of substrate (& other things) could be wreaking havok even if bleach is gone.
Test ph several hours after adding water & compare to other tanks.
well crap. my jar of purigen is less than 6 months old & has the old instructions on it. also, when shopping online those instructions are still everywhere I looked. That's a rip. the buffer isn't cheap.They actually changed the recharge process a few years ago.......
http://www.seachem.com/support/forums/showthread.php?t=3593
well crap. my jar of purigen is less than 6 months old & has the old instructions on it. also, when shopping online those instructions are still everywhere I looked. That's a rip. the buffer isn't cheap.
Grrrr