03-05-2010, 11:10 AM
Join Date: Nov 2009
iTrader Positive Rating: 100%
| | Re: Some assistance with canister filters
If you don't have a large fish load, a 2215 should be fine as well. A little cheaper, but should work fine for a low load 40g.
As far as the growth, make sure you are fertilizing and that you have a quality light. My CO2 reactor is inline to a 2215. I have a ton of surface agitation, and I get huge plant growth. I started with just CO2, and didn;t get good growth. Upgraded my lighting and went to an EI dosing method, and overnight difference. CO2 by itself isn't going to help much but reducing algae. You really need good light, CO2, and fertilizer to get strong growth. Once you have all three of those, it's just a matter of finding the right balance of lighting to keep algae at bay.