Join Date: Sep 2012
Location: Windsor, Ontario
SURVEY: who uses Purigen and CSM+B
From a different thread we got a bit off topic and began to discuss the use of CSM+B with Purigen. Specifically that the EDTA in CSM+B renders the Purigen harmful after the specified regeneration procedure. I contacted Seachem who had this to say:
"You can certainly use both products in the same tank, however I would not recommend regenerating Purigen once it has exhausted. Instead, you should replace the exhausted Purigen with fresh Purigen in order to avoid contaminating your tank with chloramines.
Any amine based product, including EDTA comprised chemicals, do pose as a problem and should be avoided if wanting to regenerate Purigen for future use."
I suspect that there must be hundreds, if not thousands of users, using both these products because the warning against EDTA is not prominent.
I can't help wonder if this is a real problem, or a "storm in a teacup". I like Purigen but its not cheap and I won't use it if I have to replace it each time with new product.
I'd like to hear from users. Do you use this combination? If so, have you experienced problems after regeneration of the Purigen?