Spraybar placement for the mist method


Junior Poster
Mar 11, 2005
Richmond Hill, Ontario, Canada
I have a 20H that I was planning on reworking a little bit. One of the things I want to do is replace the HOB with a Ehiem 2215 that I freed up from another tank I took down. As well I'd like to put a limewood diffuser on my co2 tank to try the mist method.

My question is how/where should I place the spray bar, and the limewood airstone? I was thinking that the spray bar should go 2/3 of the way down, pointing slightly down, with the limewood directly underneath... Is this a good plan, or is there a better one?