Just wondering, will stainless steel be harmful to fish? because was reading scrubbies usage and saw that stainless steel scrubbies have even more surface area than nylon ones?
was thinking if they'll be safe to add into filtration?
http://wernersponds.com/biofiltermedia.htm
was thinking if they'll be safe to add into filtration?
http://wernersponds.com/biofiltermedia.htm