Another update -- big change! I picked up a 29g today and swapped it in to replace the 20g long. (Did this mostly to absorb some of my excess bio-load) Specific steps:
1. Removed equipment from 20g
2. Removed fish, plants, decor, substrate and water from 20g
3. Moved the 20g and put the 29g in it's place
4. Moved everything into the 29g (including the water -- mostly just to keep the transition as low-impact as possible)
5. Added some more Eco Complete
6. Added an AC 20 to supplement the AC 50 that had been on the 20g
7. Replanted all the plants, made sure all machinery was running
At the time of moving the fish back in, I noticed that I was missing 1x julii cory, but I didn't see a body, so I'm wondering if the little guy died at some point and wasted away...hopefully I didn't lose him during the move.
Aside from that, things look pretty good. All fish seem to be happy swimming and exploring the new space -- it's kind of neat, actually, to now have a clear open water area above the plants for the danios and rasboras to cruise. I also feel like this swap was a good practice run for whenever I next move.
Will try to post some pics tomorrow.......woot.