Here is a small update and some pictures:
Update:
I cleaned the tank yesterday evening, and now everyone is happy again. I've been a little neglectful with the tank because I've been incredibly busy with school, but I finally got around to it, and everything looks 10 times better. I took the above pictures last night while the water was still clearing up, hence why it is cloudy.
I had to move my original dwarf gourami (Gardener) to the 10 gallon w/ the archerfish. Apparently, he is getting terribly harassed by his tankmates. I'm hoping the two get along in the 10-gallon tank and the gourami heals. Once he looks better, I'll move him back to the main tank.
Finally, I came up with a tank decor arrangement that I truly like with the decor that I have. As I've mentioned 100 times now, I do thoroughly intend to put live plants and new decor, but right now I don't have the funds for an overhaul like that, but it'll happen one day.
I'll be posting a few more pictures soon.