I've been wanting to get into the hobby for quite some time already. Finally did. Starting with a nano 20g long. Love the look of the longer shallow aquariums. Did plenty of research before starting anything and finally got it up and running. It's been running for 4 days now. I have a penguin 350 hang on back filter running on it. Would you guys recommend adding a powerhead or circulation pump for more flow or is the filter good enough?? Any advice, tips, or pointers would be greatly appreciated. Looking forward to hearing from everyone here. Oh, and a noob question, how do I post pictures?? Haha.