There are a lot of different factors which contribute to a green water issue and it may not be the UV system at fault. The steriliser will work to maintai...

To get your EF-05 running for the first time; Ensure the media is stocked all the way up to the top and completely fill it with water in order for it t...

Our External Filter range vary in body size. Although you can not use a smaller head unit on a larger size unit, some of them are interchangeable between b...

Our External Filter range vary in body size. Although you can not use a smaller head unit on a larger size unit, some of them are interchangeable between b...

What the ultra violet light does is reduces the pathogens in the water and prevents algae growth once killed. It denatures all bacteria after passing throug...

After completely rinsing your media the activated carbon should go in the top basket. Then bio balls in the middle and ceramic rings in the bottom. If there...

You should find out the volume of tank and judge accordingly using the specification details of the product. You can never have too much filtration but yo...

An External Filter product relies on a siphon action when priming. This means it can not be positioned above the tank. For best results position your Exter...

Here is some general set up advice for the aquarium external filter range: Important: Disconnect mains electricity supply before handling or attempting ma...

The new EF filter range includes many design improvements compared to the original series. The improvements include; an easier, more consistent priming fun...