- 22 May 2008
Hi all. I'm looking for a new filter for my nano - I've got a HOB and I find it quite inefficient and it disperses out a lot of co2, so I'm looking for an external filter which will have an inline diffuser, inline heater and spray bar. Thing is, the nano only holds 15l (including displacement), and most of the filter's I've looked tend to have flow rates of 200+lph. So I'm wondering if this would blow my fish out of the water, and if so, can anybody recommend a suitable filter.