George9 said:I would love to get a canister filter for my new 40, but if I only use a canister filter will there be enough surface agitation? I don't think they will stir up the water very much.
Also, does anyone know if the Fluval canister filters come with media? I know for sure that marineland filters do.
Fishguy2727 said:They both come with media, but I wouldn't use what either gives you as media. Marineland's are worse (non-porous biomedia AND bioballs for submerged use, really?).
I would definitely go with Fluval. You can get a lot of surface agitation or none depending on how you setup the output. The 305 would be fine, but for the small price different it is probably worth stepping up to the 405.
For aeration I recommend running air stones in ANY freshwater tank, so the possible lack of surface agitation with a canister shouldn't be an issue.
You read my mind! I was laying in bed last night and this is EXACTLY what I thought. I'm definitely going with the polyfill at the bottom.jcolon said:For a 40 Gal I'd look at a Fluval 305, I do believe it comes with media like biomax, carbon and foam pads. to get surface agitation clip the output nozzle close to the surface and tilt slightly upward. With the force the water comes out ... you should have no problem agitating the surface.
If I may ... I highly recommend you get 100% poly-fill from a local arts / crafts store and stuff it in the bottom tray of a 305. It works wonders in collecting the micro debris the foam pads can't. A 20oz bag for $7 will last you months.
The other two trays you can do ceramic media like Biomax.
I thought the flual would be a better choice.
You read my mind! I was laying in bed last night and this is EXACTLY what I thought. I'm definitely going with the polyfill at the bottom.