fry_lover
Fred and the Fredettes
any good? especially at reducing nitrate?
i understand you just recharge them every 2-weeks or so in salt?
anyone with experience?
they seem to come in different brands, i guess they are all the same?
do they just sit in the external filter?
i understand you just recharge them every 2-weeks or so in salt?
anyone with experience?
they seem to come in different brands, i guess they are all the same?
do they just sit in the external filter?