My setup is not ascetically pleasing but it is functional. There are currently four containers, all plumbed together into one sump for easy dosing and water change.
Another reason why I had the setup the way it is is because I am also a real sucker when it comes to fungus strikes. So, whey they hit, all I need to do is change the pvc pipe to elevate the water level to skim them out into the sump. Or, I could do the same when I want to grow something completely submerged.
Here is the 55g - mostly crypts:
30g - mostly anubias:
2 X 18g rubber maid tubs:
I will take some individual pictures when I repot some plants this weekend.