harlequin
Member
Hello, I am setting up a new tank for someone and decided to look at something different than my current setups. After reading a quick paragraph in a fishkeeping magazine about filtration I saw these as being highly recommended. Whose uses them and how effective are they? What is a good brand with ease of maintinance to get(going in my gf's tank)? Will it work good in combination with a powerfilter for mechanical filtration? thanks