Fluval FX4 External Aquarium Filter
Perfect thank you. best external aquariums filters I’ve ever owned. Thank you for your excellent service, fast, safe, secure delivery etc. Both up and running, doing a great job. A pleasure doing business with lincsaquatics.co.uk
Only minus point is too much foam and not enough biological media. Yes I know foam holds some biological bacteria but not as much as porous hard media etc. Easily solved by removing some foam and substituting hard media. Apart from that a plus is that I find it easier to refit lid of the filter as opposed to some earlier Fluval filters.