1. I had some really nice rock kribs like I already mentioned, but I like my rainbow cichlid the best (my avatar). 2. I don't really do plants, but I have a really nice anubias that has grown a ton. 3. I just have LEDs. 4. My Aqueon filter, I guess..... 5. I created a cave out of rocks, I guess that is my best? lol 6. I have 3, a 55, a 20, and a 10.