I am about to clean out my Eheim Pro II 2028 filter, and i was going to rinse the ehfi substrat pro and replace 1/3 of it as the manual suggests.
I was wondering if it would be ok to replace the 1/3 of ehfi substrat with pot scrubbies instead. Or if i could replace all of the ehfi substrat with pot scrubbies would that be ok?
I was wondering if it would be ok to replace the 1/3 of ehfi substrat with pot scrubbies instead. Or if i could replace all of the ehfi substrat with pot scrubbies would that be ok?