i am looking at some fish that require a softer water than my tap can provide,,
is RO really the only way , or is there other water softening ways for aquarium use ,,
i am using eheim pro 3 2080 ,
can i add something to the filter media ??
is RO really the only way , or is there other water softening ways for aquarium use ,,
i am using eheim pro 3 2080 ,
can i add something to the filter media ??