This is version 2 of my internal canister filter. I found the original ideas on you tube and am changing them up to suit my needs. My first version is located here:
http://www.plantedtank.net/forums/20-diy/1032145-diy-internal-canister-filter.html. I will be updating it soon and incorporating some of my ideas from this new design into that filter.
My original goal was to build a filter to filter my 75g but it was going to be an impractical idea with the design as it was so I ended up with a water polisher. It does a good job but I want a filter that is compact enough to fit inside the aquarium and do it all. SO here is my new design. These drawings were made on paint.net so they are missing a few things like end caps and they are not up to scale but they do a good enough job of showing the design.
Ok all you diy'ers like myself pick this thing apart and lets find the flaws before I build it lol. I also want to mention this is going to filter my 20H and will be the sole filter. This 20H will sit on a home made stand with lockable casters so I can move it if Mrs. TheDood wants to move furniture. If it proves practical all of my tanks will be going on such a stand. This tank will also have a diy canopy with 2 18" 15 watt fluorescent lights mounted in it. The tank will be the new home to my rcs colony and 6 or so oto and some nerites.