Warning to everyone using Seachem Purigen and Regen

[Theblind]

Sorry to hear about you losing some of your fish but you said the bleach you use is 15% diluted to 7.5% which is a to higher concentration of bleach to what I’ve found online
This is what I’ve read / copy and pasted below

Regeneration​

You basically proceed in a similar way as if you were cleaning glassware, as explained in this article. The manufacturer Seachem from the USA recommends a 8,25% household chlorine bleach for regenerating Purigen, and to dilute it with water by about 50%