If you have an aquarium on the larger side (over 100 litres), then you may want to consider using an ‘External Filtration Unit.

Water is removed from the aquarium and passed through a ‘unit’ (usually housed in a cabinet under the tank) that contains ‘media’ which is a home  to the beneficial bacteria that converts fish waste into Nitrates – (excellent plant fertiliser) We stock External filters from EHEIM, FLUVAL, AQUAEL BETTA .