phillarrow
Seedling
- Joined
- 31 Mar 2008
- Messages
- 24
I have a HOB filter on my 25L nano planted tank and am concerned that, as the return is via sliders which basically 'drop' the water into the tank, the surface disturbance is stripping CO2 from my water. I was thinking of replacing it with an external and already have a spare Rena Filstar XP1 which I could use. The trouble is it is rated at 750LPH. Even halving that (allowing for media and flow reduction etc) gives 375LPH. Is that too much for a 25L tank? (N.B. There is no flow control on this filter) If so, could anybody reccommend a good, cheap external for a tank this small?
Cheers, Phill
Cheers, Phill