Thinking of buying a new internal power filter for your aquarium? If so, don't miss the April 2017 issue of Practical Fishkeeping!
The internal power filter is the most popular type on the market, and there's a huge amount of models available. So where do you start when choosing one?
Our April magazine makes things much easier — it features a giant internal filter test, in which we compare 50 filters to suit a range of tanks and budgets, with prices from just a tenner to over £70. You'll also find advice on what to look for when choosing a new filter — and we offer our best buys to suit a range of different set-ups.