I had planned on building a larger tank, but rental limitations put a halt on that. So.... I decided to really focus on my 10 gallon. I have it pretty heavily planted with 1 pretty non-aggressive betta and a nerite snail. It's running on a diy overflow/trickle tower with a 10 gallon sump for a total of 20 gallons in the system. With all that in mind, what do you think I could add to really make it... pop... I guess. Picture included and any suggestions are much appreciated (the water is not cloudy so much as I could not focus properly and the back wall is kind of grungy - need to scrape it next water change).